Phone: (925) 276-2207 | Email: goldenstategrind@gmail.com
One Program. One Standard. Unlimited Potential. Long-Term Player Growth
Ages 4-18 | Camps, Teams and Player Development
⚾️ Experience top-tier coaching
⚾️ Play with college and high school coaches
⚾️ Elite training for committed players
⚾️ Focused on player growth
⚾️ Perfect for serious athletes
⚾️ SEASONS END AND THE REAL WORK BEGINS.
Serious players don’t wait. They move.
Duby Baseball Fall Tryouts are here.
This is where development gets real and spots get earned.
We do more than manage teams.
We develop players.
WHY DUBY BASEBALL?
Professionally Background Checked Coaching Staff
No Parent Coaches
CPR and Basic First Aid Trained
Proven development system
Weekly Development Plan
Competitive environment
Long-term growth mindset
Professional training
Recruiting Guidance
If your player is ready to be coached, pushed, and developed the right way this is the next step.
Ages: 8U–14U
Limited roster spots
Spring and Summer ball are coming to an end.
Now it’s about who’s willing to separate.
REGISTER NOW:
dubybaseball.com
Join Us for Labor Day Baseball Fest! ⚾
Level up your skills at Golden State Grind this Labor Day!
🗓️ Date: September 7, 2026
🕘 Time: 9:00 AM – 3:00 PM
📍 Concord, CA
👧👦 Ages 4-18
💰 Only $100 — Early Bird Pricing Available!
Features:
✅ Pro coaching in hitting, pitching & fielding
✅ Speed, agility & baseball smarts training
✅ Exciting games & skill challenges
✅ Prizes & recognition
Hurry, limited spots! Register today at GRINDCAMPS.COM
#GoldenStateGrind #Baseball #Training #LaborDay
Coach Bill Duby is one of Northern California's most respected baseball leaders, recognized for building elite player development systems, championship cultures, and transformational leadership programs. Throughout his career, he has dedicated himself to developing athletes, mentoring young people, and creating opportunities that extend far beyond the game. The Duby name has become synonymous with integrity, accountability, innovation, and excellence within the baseball community.
A visionary in player development, Coach Duby blends traditional baseball fundamentals with modern instruction, advanced analytics, and innovative training methodologies. His proprietary Blue Collar Blueprint develops complete athletes by emphasizing discipline, work ethic, accountability, resilience, baseball IQ, attention to detail, and leadership. His philosophy prepares players not only to compete at higher levels, but to become confident, disciplined young men and women equipped for success in life.
Known as a builder, Coach Duby has earned a reputation for taking on challenges others avoid—transforming programs, developing organizational systems, and creating sustainable pathways for long-term player growth. His relentless commitment to continuous improvement has helped establish Golden State Grind as one of Northern California's premier baseball development organizations.
A graduate of Mt. Diablo High School in Concord, California, Coach Duby was a standout four-sport athlete, earning 10 varsity letters in football, basketball, baseball, and track & field. He received All-League and All-East Bay honors in football while qualifying for the North Coast Section Championships in the 440-yard relay, triple jump, and long jump. He also helped establish a school record in the 440-yard relay.
He continued his football career at Diablo Valley College before transferring to San Francisco State University. Coach Duby later spent more than a decade competing nationally in men's slow-pitch softball, further strengthening his understanding of high-level competition, leadership, teamwork, and performance.
Coach Duby is the founder of Golden State Grind, one of Northern California's premier baseball and softball development organizations, providing year-round instruction, camps, travel teams, showcases, and comprehensive player development for athletes ages 4–18.
Previously, Coach Duby served as California State Director for Stars and Stripes Baseball, overseeing player development, regional operations, and national exposure opportunities for elite athletes throughout California.
Beyond coaching, Coach Duby's leadership spans corporations, youth sports organizations, educational partnerships, athletic facilities, recruiting, player evaluation, coach development, practice planning, organizational operations, business leadership, advisory boards, podcasts, and community initiatives. His ability to build systems, develop coaches, mentor athletes, and elevate entire organizations has made him a trusted leader throughout the baseball community.
Today, Coach Duby continues to pursue one mission: to build one of the nation's most complete player development pathways, developing better athletes, stronger leaders, and higher-character young people through the game of baseball.
Billy Duby is a former Division I right-handed pitcher and the founder of Duby Baseball, a premier baseball development organization based in the San Francisco Bay Area. Known for his elite playing background and sharp pitching IQ, Duby has quickly built a reputation as one of the top up-and-coming instructors and player development specialists in the region.
Billy’s baseball journey began at Miramonte High School in Orinda, California, where he earned widespread recognition in 2018, including:
After high school, Duby pitched for Diablo Valley College (DVC), contributing to the Vikings’ staff during the 2020–2021 season. He then advanced to Western Kentucky University (WKU) and later to Belmont University in Nashville, Tennessee, where he completed his collegiate playing career.
Duby’s talents extended well beyond the college season. He competed in three seasons of the Florida Collegiate Summer League, where he was a standout performer. In 2023, he was selected to pitch in the prestigious National Alliance of College Summer Baseball Prospect Games, where he struck out all three batters he faced while touching 94 mph.
Later that same summer, Duby appeared for the Party Animals in their national tour against the viral Savannah Bananas, showcasing his skills in front of packed stadiums and massive online audiences.
Following his college career, Billy signed professionally with the Oakland Ballers of the Pioneer League, but was traded prior to the season to the Ottawa Titans of the Frontier League, where he made an immediate impact—earning All-Star honors in his rookie year.
In addition to his success on the field, Duby has consistently demonstrated a strong commitment to academics:
He began graduate studies toward a Master’s in Sports Administration, which he has paused to pursue professional baseball.
Driven by his passion for player development, Billy founded Duby Baseball—a dynamic training program offering teams, lessons, camps, and athlete development plans for players of all ages. Built on the foundation of hard work, attention to detail, and mental toughness, Duby Baseball has quickly become a trusted name in Northern California baseball instruction.
From dominating on the mound to building the next generation of talent, Billy Duby’s influence continues to grow. His blend of professional experience, teaching ability, and competitive fire makes him one of the most respected young coaches in the game today.
Whether he's dialing up 94 on the radar gun, mentoring pitchers on mechanics, or leading a youth camp, Billy Duby brings elite-level energy, knowledge, and commitment to everything he does.
Check out Billy Duby online to see highlights, interviews, and coaching content that reflect his growing impact on the game.
Aaron Miles is a Major League Baseball veteran and the current Manager of the Oakland Ballers.
Drafted by the Houston Astros, Aaron had a successful MLB career with the Chicago White Sox, Colorado Rockies, St. Louis Cardinals, Chicago Cubs, and Los Angeles Dodgers. Notably, he was part of two NCS championship teams and clinched a World Series title with the St. Louis Cardinals in 2006.
Known for his blue-collar work ethic, toughness, and fearlessness, Aaron’s grit extended beyond the baseball field. In 2000, during spring training with the Astros, Aaron's mental and physical resilience were tested when he was taken hostage by two gunmen at his hotel. After a tense standoff, Aaron wrestled one of the gunmen to the ground, allowing the police to subdue the situation.
Aaron retired from Major League Baseball in 2011 after playing one final season with the Los Angeles Dodgers. Over the course of his career, he maintained a .281 batting average and proved to be a clutch performer—leading the National League with a .357 batting average with runners on base in 2011.
Aaron's versatility, baseball intelligence, and mental approach to the game have made him an invaluable coach and mentor. He has played a key role in developing the baseball knowledge and on-field performance of Golden State Grind players. His insights and leadership continue to benefit the team, making him an essential resource for both players and staff.
Play The Grind Scrimmage Baseball Game Request
Please find detailed program policies and FAQs below.
GRIND Baseball & Softball Camps
Frequently Asked Questions (FAQ)
Where are GRIND Camps held?
GRIND Camps are held at GRIND Headquarters in Concord, unless otherwise noted. Our facility is located adjacent to Marathon Refinery. Parking is available in the designated lots near the baseball fields and batting cages. Specific camp locations will always be included in your registration confirmation.
When are camps offered?
GRIND Camps are offered year-round during summer, school holidays, school breaks, teacher workdays, and other select dates.
Visit GRINDCAMPS.COM for the most current camp schedule, locations, and registration information.
What is LADY GRIND Softball?
LADY GRIND Softball was introduced in 2018 to provide girls ages 4–18 with dedicated softball instruction in a positive, competitive environment.
Players train with experienced softball coaches while participating in many of the same exciting competitions, games, and activities that make GRIND Camps unique.
What ages do you accept?
Our camps are open to baseball and softball players ages 4–18.
Players are grouped by age, experience, and skill level whenever possible to provide the safest and most productive learning environment.
What should my child bring?
Please label all personal belongings.
Each player should bring:
- Glove
- Bat
- Batting Helmet
- Baseball or softball pants
- Hat or visor
- Cleats (plus athletic shoes if available)
- Water bottle(s)
- Lunch and snacks (for full-day camps)
- Sunscreen
- SPF lip balm or chapstick
- Jacket or sweatshirt
- Protective cup (strongly recommended)
- Any personal equipment they prefer to use
What should my child wear?
Players should arrive dressed and ready to participate.
Recommended attire includes:
- Baseball or softball hat/visor
- Comfortable athletic shirt or jersey
- Baseball or softball pants
- Baseball or softball cleats
- Athletic attire appropriate for weather conditions
Are sunflower seeds or gum allowed?
No.
Sunflower seeds, gum, tobacco products, energy drinks, and glass containers are prohibited to help keep our facility clean, safe, and well maintained.
What time should we arrive?
Morning check-in typically begins between 8:30–8:45 AM, with instruction beginning promptly at 9:00 AM.
Please refer to your registration confirmation for your specific camp's arrival time and location.
How does drop-off and pick-up work?
Camp concludes at 3:00 PM each day unless otherwise noted.
For every player's safety:
- An authorized adult must sign the player out.
- Players will only be released to individuals listed on the registration.
- Players may not leave camp without authorization unless prior written permission has been approved by camp management.
How do younger and older players attend the same camp?
Players are divided into age-appropriate and skill-appropriate groups throughout the day.
This allows every athlete—from beginners to advanced players—to receive instruction that matches their development level.
Baseball and softball instruction is separated when appropriate while many competitions and camp activities are enjoyed together.
How do bathroom breaks work?
Player safety is our highest priority.
Staff members escort groups of campers to the restroom area and remain outside while campers use the facilities.
No staff member is ever alone inside a restroom with a camper.
Hand sanitizer and cleaning supplies are available throughout the day.
Is there medical staff on site?
While we do not employ on-site medical personnel, our staff members are trained in CPR, basic first aid, injury response, and emergency procedures.
First aid kits, cold packs, water, and sports drinks are available at all times.
Parents or emergency contacts will be notified immediately if additional medical attention is necessary.
Is adult supervision provided?
Yes.
Players are supervised throughout the entire camp day by qualified coaches and approved adult staff. Player safety and well-being remain our highest priorities.
Are coaches background checked?
Yes. Adult staff members are expected to meet our hiring and safety standards.
Many of our instructors are current or former professional players, collegiate athletes, high school coaches, and experienced baseball and softball instructors.
What is the coach-to-player ratio?
To maximize instruction and individual attention, we strive to maintain approximately one coach for every six campers, although ratios may vary depending on attendance and activities.
What does a typical camp day look like?
8:30–8:45 AM — Check-In
9:00 AM–12:00 PM
- Dynamic Warm-Up
- Stretching & Throwing Progression
- Arm Care
- Hitting
- Fielding
- Pitching
- Catching
- Base Running
- Speed & Agility
- Strength & Athletic Development
- Baseball IQ
- Hourly and as-needed hydration breaks
12:00–1:00 PM
Lunch & Recovery
1:00–2:00 PM
Competitions, Games, Challenges & Daily Prizes
2:00–3:00 PM
GRIND Wiffle Ball World Series
3:00 PM
Pick-Up
Schedules may be adjusted based on weather, age groups, facility availability, or special events.
What if my child misses a camp day?
If your child cannot attend due to illness, injury, vacation, or another scheduling conflict, please notify us as soon as possible.
When possible, we will issue a camp credit toward another eligible GRIND Camp.
What is your refund policy?
All registrations are final. GRIND Camps does not offer refunds.
Instead, eligible cancellations may receive a camp credit valid toward a future GRIND Camps program, subject to availability.
This policy allows us to:
- Reserve your player's roster spot.
- Hire and schedule qualified coaches.
- Maintain safe coach-to-player ratios.
- Purchase equipment, awards, and camp supplies.
- Reserve athletic fields and facilities.
- Secure insurance coverage.
- Plan staffing and operational expenses well in advance.
Once registration is completed, these expenses and commitments begin immediately, regardless of attendance.
Our goal is to treat every family fairly while maintaining exceptional camp quality. Providing camp credits instead of refunds allows us to continue investing in our players without increasing costs for all families.
How long are camp credits valid?
Camp credits are valid for 12 months from the original camp date.
Credits:
- Have no cash value.
- Are non-transferable unless approved by management.
- May only be applied toward eligible future GRIND Camps.
What happens if GRIND Camps cancels a camp?
If GRIND Camps cancels a program due to unforeseen circumstances—including unsafe weather, wildfire smoke, facility closures, or other events beyond our control—registered families will receive a full camp credit toward another GRIND Camp.
Are camps held in bad weather?
Most camps continue as scheduled.
However, camp schedules, locations, or activities may be modified, postponed, relocated, or canceled if weather or field conditions create an unsafe environment.
Player safety always comes first.
What if my child becomes sick or injured during camp?
If a player becomes ill or injured, staff will provide appropriate first aid and immediately contact the parent or emergency contact listed during registration if additional care is needed.
Can parents stay and watch?
Absolutely.
Parents are welcome to observe from designated viewing areas while allowing coaches to maintain a focused and positive learning environment for all campers.
What makes GRIND Camps different?
GRIND Camps is built around long-term player development—not simply playing games.
Our instruction is led by experienced professional players, college coaches, former collegiate athletes, and high school coaches who are committed to developing complete athletes.
Every camp emphasizes:
- Skill Development
- Baseball & Softball IQ
- Confidence
- Leadership
- Character
- Accountability
- Work Ethic
- Competition
- Having Fun
Our mission is simple:
Develop Better Players. Build Better People. Prepare Them for Success On and Off the Field.
Contact Us
Coach Bill Duby
Call or Text: (925) 276-2207
Email: grindcamps@gmail.com
Website: GRINDCAMPS.COM
Boost Your Pitching Skills Fast! Improve mechanics, velocity, and strength. Open to all ages and levels. Train like pros today!
Join our baseball family! Develop skills, boost performance, and reach new heights with expert coaching.
Master your pitching skills with expert coaching! Our sessions cover mechanics, command, velocity, and pro secrets—equipping you to dominate on the mound. Join us at Golden State Grind and elevate your game today.
Aaron Miles, a World Series Champion, former Major League Baseball (MLB) player, and current Manager of the Oakland Ballers, is a name synonymous with success and dedication in professional baseball. With over two decades of experience—spanning MLB competition and team management—Aaron is passionate about molding young athletes into complete players who excel on and off the field.
At Golden State Grind, Aaron brings his unmatched expertise and commitment to Contra Costa County, providing aspiring players with the tools to achieve their dreams. Whether you’re aiming for the big leagues or simply looking to sharpen your skills, Aaron’s personalized, character-focused training ensures you reach your full potential.
Aaron's illustrious MLB career included stints with iconic teams like the St. Louis Cardinals (where he won the 2006 World Series), Chicago Cubs, Colorado Rockies, and Los Angeles Dodgers. His professional insight covers every aspect of the game—hitting, fielding, pitching strategy, and mental preparation. His experience directly informs his coaching style, offering players unparalleled guidance rooted in real-world success.
2. Leadership as Oakland Ballers Manager
As the manager of the Oakland Ballers, Aaron oversees the development of professional athletes. His experience at the helm of a competitive team ensures he understands how to develop players of all levels, from little league beginners to those preparing for college, minors, or professional careers.
3. Building Character Through Baseball
Aaron emphasizes more than just baseball skills—he instills discipline, resilience, and leadership in every player. At Golden State Grind, young athletes learn life lessons that extend far beyond the diamond, giving them the confidence and determination to face challenges in sports and life.
4. Mentorship from a World Champion
Aaron’s firsthand knowledge of competing and succeeding at the highest level is invaluable. He helps players develop the mindset needed to excel, whether it’s handling high-pressure situations or embracing a blue-collar work ethic that leads to greatness.
5. A Fun, Professional Learning Environment
Aaron believes passion is the foundation of progress. At Golden State Grind, sessions are challenging yet engaging, fostering a love for the game while emphasizing professional-level training.
Expert-Led Training
With Aaron Miles leading the charge, players receive world-class instruction tailored to their goals. His 20+ years of MLB and management experience provide a unique edge that few programs can match.
Comprehensive Player Development
Our approach focuses on technical skills, strategic thinking, and mental toughness. We aim to develop well-rounded athletes who excel in all aspects of the game.
A Competitive Edge
Aaron’s teaching doesn’t just prepare players physically—it sharpens their understanding of the game. Learn to anticipate plays, adapt to opponent strategies, and make game-winning decisions with confidence.
Community of Excellence
When you join Golden State Grind, you become part of a supportive community dedicated to helping you achieve greatness.
Don’t miss the chance to train with one of baseball’s best. Whether you’re just starting your baseball journey or looking to take your skills to the next level, Aaron Miles and the Golden State Grind team are here to help.
Upcoming Camps and Training Sessions:
Click below to secure your spot and take your game to the next level!
Register Now
Contact Us: Have questions? Reach out at goldenstategrind@gmail.com or visit www.goldenstategrind.com for more information.
Not all private baseball lessons are created equal. Each individual lesson is uniquely different, and upon initial evaluation, players will have a tailored plan to fit the wants and needs of each individual.
Baseball instruction will consist of drills and training developed and used through 20+ years of professional baseball experience as a major league player, professional manager, and World Series Champion.
Aaron is available for individual & group lessons, and team workouts.
REGISTER NOW TO TRAIN LIKE A MAJOR LEAGUER
CAMPS & TRAINING
SKILLS & FUNDAMENTALS FOR AGES 4-18
BOOST CONFIDENCE & GAME PERFORMANCE
TOURNAMENTS & PRIZES
TEE OFF Wiffle Ball Series
TEAMS
8U-14U Baseball / 14U-18U High School
EXPOSURE + DEVELOPMENT + COMPETITION
PRIVATE & POSITION-SPECIFIC TRAINING
HITTING, PITCHING, CATCHING, FIELDING, BASE RUNNING, GAME READINESS
We are dedicated to developing our youth through baseball camps, pre-high school preparation, high school preparation and college baseball player development in Northern California. We focus on Old School baseball with an emphasis on blue collar work ethic to prepare for success.
BASEBALL CAMPS in BRENTWOOD
BASEBALL CAMPS in RODEO
BASEBALL in MARTINEZ
BASEBALL in OAKLEY
BASEBALL in VALLEJO
BASEBALL in ANTIOCH
BASEBALL in PITTSBURG
/grind/
to perform repetitive
actions over and over
in order to obtain a goal.
BASEBALL CAMPS in EAST BAY
BASEBALL CAMPS in BAY AREA
BASEBALL CAMPS in CONCORD
BASEBALL in PLEASANT HILL
BASEBALL in ORINDA
BASEBALL in WALNUT CREEK
BASEBALL in MORAGA
BASEBALL in LAFAYETTE
BASEBALL in ALAMO
BASEBALL in DANVILLE
BASEBALL in SAN RAMON
The GOLDEN STATE GRIND 12U baseball team won the All World Sports 12U 2017 Ultimate World Series Championship in Reno, NV & the first ever Cooperstown All Star Village 2017 Green Monster Championship in Cooperstown, NY.
BASEBALL CAMPS in NOR CAL
BASEBALL CAMPS in MARTINEZ
BASEBALL CAMPS in BENICIA
BASEBALL in MARTINEZ
BASEBALL in PACHECO
BASEBALL in CONCORD
BASEBALL in CLAYTON
BASEBALL in CLYDE
BASEBALL in BENICIA
Contact Us
At Golden State Grind, we value the relationships we build with our players, families, and the baseball community. We're always happy to hear from you!
Whether you have questions about our programs, want to get involved, or need assistance, our team is here for you.
Feel free to reach out to us during normal business hours. We look forward to connecting with you!
Contact Information
Email: goldenstategrind@gmail.com
Phone: 925-276-2207
Hours: Monday - Friday, 9am-7pm
1745 Arnold Industrial Way, Concord, California 94520, United States
Open today | 09:00 am – 05:00 pm |
Golden State Grind Program Workouts and Games
Tuesday from 4pm to 7pm
Wednesday from 4pm to 7pm
Thursday from 4pm to 7pm
Saturday: Refer to Game Schedule
Sunday: Refer to Game Schedule
Support Our Mission: Help Us Build a Stronger Future for Our Players
At Golden State Grind, we are committed to providing a comprehensive and high-quality baseball program that focuses on developing both the athletic and personal growth of our players. But we can’t do it alone. Your support and contributions play a critical role in making this possible.
Why Your Donation Matters
Running a successful and impactful baseball program comes with significant expenses, from team travel and tournament fees to equipment, apparel, and memberships. These investments are essential to ensuring that our players receive the best training, experiences, and opportunities for success.
How Your Donation Makes a Difference
Your generous donation will directly contribute to our mission of providing top-tier baseball training and support for underprivileged families, allowing us to offer scholarships, fund travel expenses, purchase equipment, and cover other critical program costs. By helping us with these efforts, you are investing in the development of future athletes, leaders, and role models.
Your contribution is more than just a donation; it is an investment in the future of our players. With your help, we can continue to provide young athletes with the tools, resources, and opportunities they need to succeed on and off the field.
Thank you for your support!
OPEN TRYOUTS EVERY WEEK
ONE PATHWAY. EVERY LEVEL. AGES 4-18
PROFESSIONAL COACHES | CAMPS | TEAMS | RECRUITING
REGISTER NOW
⚾ Camps
⚾️ Teams
⚾ Player Development Pathway
⚾ Private Lessons
⚾ College Recruiting
⚾️ Advanced Analytics
⚾ BASEBALL CAMPS NOW OPEN! ⚾
👉 Don’t miss your opportunity to level up. Start your journey now!