4app
Throw harder.
Locate better.
Keep your arm healthy.
Learn from the team behind a Cy Young Award and 70+ pitchers who've gone from high school to professional baseball.
What your fastball could look like in 3 months with 4App
Tell us where you're at today and we'll show you what pitchers like you look like three months after starting the program.
Estimates are based on what we see with our athletes. Results are not guaranteed and vary based on a number of factors.
Who's coaching you
Trevor Bauer is a Golden Spikes Award Winner, first round draft pick, MLB All-Star, and Cy Young Award winner. He's been an all-star in every league he's played in around the world, and is still pitching at an elite level today with no major injuries to date in his career.
None of that came from being the best athlete in the room. He treated pitching as an engineering problem — biomechanics, video, force data, daily health tracking — and rebuilt his own delivery from first principles.
Most pitchers who reach that level can't tell you how they got there. Trevor coached himself there, so he can tell you, based on data and experience, exactly what to change and why it works.
Tim Naiman has spent 16 years developing average athletes into superstars. More than 200 of his athletes have competed at the Division I level, and over 100 have reached the professional ranks. That includes MLB All-Stars, World Series champions, Super Bowl and Stanley Cup winners, and a Hall of Famer. Today more than 60 professional baseball players trust him with their development, their body and their career.
With two master's degrees and a PhD in progress, Tim combines scientific principles with real-world experience to identify the physical qualities that drive performance. He uncovers where each athlete has the greatest opportunity to improve, builds training programs around those needs, and evolves with the athlete to provide exactly what they need at every stage of their career.
The results
We've helped pitchers at every level gain velocity while improving arm health. Every pitcher has a different constraint, so we customize your program to your strengths and weaknesses so you get results, no matter what level you're starting at.
{{ q.text }}
{{ p.text }}
{{ p.text }}
The Process
The repeatable three-step process Trevor used to go from one of the worst players on his travel team to the best pitcher in the world.
Trevor and Tim go through your movements frame by frame and identify exactly what the main constraint is that's holding you back. Most of what looks wrong in a delivery isn't the problem — it's your body compensating for something that happened earlier. We trace it back to the root.
“Each of those is your body trying to rescue balance it lost earlier in the delivery.”
Your throwing, strength, conditioning, mobility, nutrition and recovery all get built to attack your main constraint so the work in the weight room and the work on the mound are finally pulling in the same direction instead of against each other.
Every joint, every plane. What your body can and can’t do right now.
Tim explains what the assessment found and how the program attacks it.
Your delivery, phase by phase, with the drills that fix each problem.
Trevor walks through your delivery and what to change first.
Every part of the plan is waiting in the app, laid out day by day and hour by hour. What to throw, what to lift, what to eat, when to back off. Stop guessing what to work on. We handle all the thinking for you so you can focus on training.
Every session, meal and check-in on a timeline, hour by hour. Open the app and know what is next.
Meals, timing and supplements down to the capsule, matched to the work you are actually doing.
Each day’s routine with the drills, weights, intensity and what every throw is for.
Every block, set, rep, weight and tempo, with a built-in timer and a video for each lift.
Plus post-throwing recovery, a daily readiness score, and bullpen command tracking — all adjusting to your body, your schedule, and how you feel that day.
© 4APP Sports LLC
4app
Throw harder.
Locate better.
Keep your arm healthy.
Learn from the team behind a Cy Young Award and 70+ pitchers who've gone from high school to professional baseball.
Get your FREE Velocity Guide
What your fastball could look like in 3 months with 4App
Tell us where you're at today and we'll show you what pitchers like you look like three months after starting the program.
Estimates are based on what we see with our athletes. Results are not guaranteed and vary based on a number of factors.
Who's coaching you
Trevor Bauer is a Golden Spikes Award Winner, first round draft pick, MLB All-Star, and Cy Young Award winner. He's been an all-star in every league he's played in around the world, and is still pitching at an elite level today with no major injuries to date in his career.
None of that came from being the best athlete in the room. He treated pitching as an engineering problem — biomechanics, video, force data, daily health tracking — and rebuilt his own delivery from first principles.
Most pitchers who reach that level can't tell you how they got there. Trevor coached himself there, so he can tell you, based on data and experience, exactly what to change and why it works.
Tim Naiman has spent 16 years developing average athletes into superstars. More than 200 of his athletes have gone on to compete at the Division I level, and over 100 have reached the professional ranks. That includes MLB All-Stars, World Series champions, Super Bowl and Stanley Cup winners, and a Hall of Famer. Today more than 60 professional baseball players trust him with their development, their body and their career.
With two master's degrees and a PhD in progress, Tim combines scientific principles with real-world experience to identify the physical qualities that drive performance, uncover where each athlete has the greatest opportunity to improve, and build training programs around those needs. From early development to making a high school team, earning a college opportunity, to pro preparation, performance, durability and career longevity — his system evolves as the athlete does, to provide exactly what they need at every stage of their career.
The results
We've helped pitchers at every level gain velocity while improving arm health. Every pitcher has a different constraint, so we customize your program to your strengths and weaknesses so you get results, no matter what level you're starting at.
{{ q.text }}
{{ p.text }}
{{ p.text }}
The Process
The repeatable three-step process Trevor used to go from one of the worst players on his travel team to the best pitcher in the world.
Trevor and Tim go through your movements frame by frame and identify exactly what the main constraint is that's holding you back. Most of what looks wrong in a delivery isn't the problem — it's your body compensating for something that happened earlier. We trace it back to the root.
“Each of those is your body trying to rescue balance it lost earlier in the delivery.”
Book a call to get your analysisYour throwing, strength, conditioning, mobility, nutrition and recovery all get built to attack your main constraint so the work in the weight room and the work on the mound are finally pulling in the same direction instead of against each other.
Every joint, every plane. What your body can and can’t do right now.
Tim explains what the assessment found and how the program attacks it.
Your delivery, phase by phase, with the drills that fix each problem.
Trevor walks through your delivery and what to change first.
Every part of the plan is waiting in the app, laid out day by day and hour by hour. What to throw, what to lift, what to eat, when to back off. Stop guessing what to work on. We handle all the thinking for you so you can focus on training.
Every session, meal and check-in on a timeline, hour by hour. Open the app and know what is next.
Meals, timing and supplements down to the capsule, matched to the work you are actually doing.
Each day’s routine with the drills, weights, intensity and what every throw is for.
Every block, set, rep, weight and tempo, with a built-in timer and a video for each lift.
Plus post-throwing recovery, a daily readiness score, and bullpen command tracking — all adjusting to your body, your schedule, and how you feel that day.
Get started FREE — download the app
© 4APP Sports LLC
We use cookies to see which parts of this page help pitchers the most. Decline any time and we’ll stop.