Prevent
Warm-up, arm-care, hamstring and ankle routines a team can run before practice, with no trainer and no equipment beyond a band.
Stats · Arm care · Recovery
Play smarter.Stay onthe field.
Free stats and injury-prevention tools for youth teams, with or without an athletic trainer. Log your games, protect every pitcher’s arm, and learn the routines most teams never get shown.
PlayBetter by the numbers
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MLB pitchers studied after surgery
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Prevention routines
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Exercises, each explained
$0
Cost to any team, no account
- Batting average
- Pitch counts
- On-base %
- Rest days
- Slugging
- Arm care
- Strikeout rate
- Warm-ups
- Nordic curls
- Balance work
- Get it checked
- Recovery
- Return to play
How it works
Play better. Stay healthy.
Most youth teams track runs and wins. Few track whose arm needs rest, or teach the routines that keep players from getting hurt. PlayBetter does both.
Your stats
Step 01: Log
Add a game by hand in under a minute, or upload a GameChanger season export for the whole team. No account needed.
Analysis
Step 02: Learn
See what the numbers say: where you’re strong, what to work on next, and the math behind it, in plain words.
Prevention
Step 03: Protect
Track pitch counts and rest days, run the warm-up and arm-care routines, and know when an injury needs to be checked.
New · October 2026
“Walk it off” isn’t a plan.
On a lot of youth teams, playing hurt gets called toughness. Often it really comes down to who can afford to get an injury checked. PlayBetter gives every team the basics a trainer would bring, for free.
Track
Pitch counts and rest days for every pitcher, from MLB and USA Baseball Pitch Smart guidelines. Arm pain holds a pitcher out.
Recover
The signs that mean get it checked, free and low-cost places to get care, and a step-by-step plan for the weeks after.
The app
Built for teams without a trainer.
Stats, pitch counts and injury prevention in one free app. Everything saves in your browser, so there is nothing to sign up for.
Prevention & recovery
What a trainer would show your team.
Warm-up, arm-care, hamstring and ankle routines, with sets, reps and how to do each exercise. Plus the signs that mean get it checked, and where to find care you can afford.
- Four routines, each under 10 minutes
- Red flags that mean stop playing
- Low-cost care options and a plan for coming back
General education, not medical advice. If it hurts, have it checked.
Pitch counts
Know who can pitch today.
Log each outing and PlayBetter works out the rest days from MLB and USA Baseball Pitch Smart guidelines. A pitcher who reports arm pain stays off the list until a coach clears them.
- Daily limits for ages 7 to 18
- Rest days counted for you
- Arm pain holds a pitcher out
Game stats
Your games, analyzed.
Log your own games, or upload a GameChanger export for the whole team. PlayBetter turns the numbers into strengths, weak spots and what to work on next.
- Add a game in under a minute
- GameChanger season import for coaches
- Saved in your browser, no account
For coaches
From GameChanger to a team dashboard in a minute.
Export from GameChanger
Download your team’s season stats as a CSV file.
Upload it to PlayBetter
Every player and their stats show up on one dashboard.
Add your pitchers
Log outings after each game and see who can pitch next time.
Team analytics
Pro analytics for every team.
Upload your GameChanger export and get a professional dashboard instantly. Track player performance, see progress over time, find the areas to work on, and share updates with the people who care.
Coaching
On the field with Cooper.
Three ways to work together, all built on one idea: know your numbers, train what they tell you, and stay healthy enough to use them.
1-on-1 coaching
Hitting lessons with Cooper: swing mechanics, a practice plan built for you, and feedback after every session.
Start now
Team coaching
Practice plans your whole roster runs together, starting with a real warm-up and arm care for every pitcher.
Start now
Stats & performance education
Learn to read your own numbers: strengths, weaknesses, and progress, so you always know what to work on and why.
Start nowResearch
Why arm care comes first.
Cooper studied 428 MLB pitchers before and after Tommy John surgery, using ten seasons of Statcast, Baseball Savant and Lahman data, analyzed in Python. Most got their workload back. Many never got their old role back. The best surgery is the one a pitcher never needs.
- Dataset
- 428 pitchers
- Sources
- Statcast · Savant · Lahman
- Toolset
- Python · 10 years
<100%
Velocity
Comes back, but not all the way.
Year 2
Workload
Fully recovered by the second season.
Starts ↓
Role
Teams still start them less often.
Sinkers ↓
Arsenal
Sinker usage drops after surgery.
About
Who's Cooper?
Cooper Won is a senior and varsity baseball captain at Dwight Morrow High School in Englewood, NJ, and a sports analytics researcher. He started PlayBetter to teach younger players the math behind their stats. After watching a teammate play through an injury that never got treated, and helping out in his school’s athletic training room, he added what most teams are missing: arm care, injury prevention and a plan for getting back.
“I can’t guarantee every teammate gets treatment. But I can challenge the idea that they should play through pain.”
Pricing
Free for every team.
The app is free, with no account and no card. Coaching sessions with Cooper are set up separately.
Players & parents
Start hereFor an athlete who wants to improve and stay healthy.
Free
- Log games and see your stats analyzed
- Prevention routines with how-to for every exercise
- Recovery guide and low-cost care options
- Stat lessons
Coaches & teams
For a coach and a roster, with or without a trainer.
Free
- GameChanger season import
- Team stats dashboard
- Pitch counts and rest days
- Coach injury checklist
Coaching with Cooper
Lessons and team sessions in Bergen County, NJ.
Contact
- 1-on-1 hitting lessons
- Team practice plans
- Learning to read your own stats
FAQ
Questions, answered.
The things every parent, player and coach asks first.
Yes. Every tool in the app is free for players, parents and coaches. You don’t need an account or a card.
Free for every team
Keep your team on the field.
Open the app, no account needed, or write to Cooper about coaching for you or your team.