Helping athletes have a plan, move better & perform at the next level Trusted by 600+ athletes | HS • D1 • Pro 📲 Remote Training DM To Get started
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READY TO TAKE YOUR GAME TO THE NEXT LEVEL? ⚾️
Costello Coaching provides high-level remote baseball performance training built for athletes who are serious about getting better.
600+ ATHLETES
⚾ High School
🎓 Division I
🔥 Professional / MLB
WHAT WE OFFER:
⚾ Throwing & Arm Development
💪 Strength & Performance Training
📈 Individualized Programming
📲 Remote Coaching & Accountability
Every athlete gets a plan built around their body, goals and game.
Whether you want to throw harder, get stronger, become a better hitter, or prepare for the next level — we’ll give you the plan and help you execute it.
Ready to get started?
📩 DM “START” for coaching information & availability
Costello_coaching retweeted
Solid outing Sunday with So Cal Giants at LMU. 6 batters 27 pitches 0H, 1K. T89 @NitroRecruits @SoCalGiants @jrobertsonNRG @NpBase @CostCoaching1 @hardy03bsbl
Costello_coaching retweeted
Jacob Wilson | Athletics ⚾️
Jacob came through Costello Coaching before his junior year of college with one major goal: improve his speed and raise his draft stock.
⚡️ Home-to-first: 4.4 → 4.1 seconds
💪 Added 15 lbs
📈 Developed more strength & power
🏆 6th overall pick in the MLB Draft
⭐️ Finished 2nd in AL Rookie of the Year voting
From trying to raise his draft stock to becoming one of the best young players in baseball.
Costello Coaching → The Next Level.
DM “TRAINING” to get started.
Your weaknesses doesn’t get ignored here — we attack them.
Arm strength. Velo. Mobility. Speed. Strength. Mechanics. Whatever is holding you back, we build the program around fixing it.
No cookie-cutter training. Just a plan built for YOU.
DM “PROGRAM” to get started. ⚾️📈
Costello Coaching Athlete Spotlight: Jack Costello ⚾️
Overlooked early on, Jack bet on himself.
Freshman All-American at USD → Cape Cod League → 10th-round pick by the Padres.
offseason: +8 MPH barrel speed, +8 lbs lean mass, -4% body fat.
Also named a Padres Humanitarian of the Year.
Just getting started. 🔥
Luca Slewett.
81→ 89 MPH in one summer following our Costello Coaching throwing + lifting program 📈⚾️
Luca has put in the work all summer and is drawing serious interest from Ivy League programs.
Big jump. Bigger things ahead. 🔥
Luca Slewett.
81→ 89 MPH in one summer following our Costello Coaching throwing + lifting program 📈⚾️
Luca has put in the work all summer and is drawing serious interest from Ivy League programs.
Big jump. Bigger things ahead. 🔥
Ryan Reynolds made the jump from 84-86 → 94-95 MPH. 📈
A great example of what consistent, individualized training and buying into the process can do.
That same approach is what we bring to every athlete at Costello Coaching.
Jack Kaplan to the Ivy League 📈🌿
82 → 90 MPH on the mound
.320 → .381 AVG
1 → 5 HR
.493 → .726 SLG
Committed to @BigGreenBSB
A huge year of development for Jack. Proud to have him as part of Costello Coaching and excited to see what’s next @JackKaplan08
Jack Laubacher – Oklahoma State 🤠
Met Jack back in 8th grade and have watched him develop into a legit arm. We’ve focused heavily on building strength and explosiveness throughout his development.
After battling back from Tommy John surgery, Jack’s resilience, attention to detail, and meticulous work have set him up for a bright future as he heads into his first year at Oklahoma State.
Adam Batmanian – Glendale College 📈
Junior year at Chaminade: 81–83 MPH, 74:4 K/BB, 1.70 ERA.
Senior year: 86–87 MPH.
Now at Glendale College: 88–89 MPH and still climbing.
Adam has always found ways to dominate. His consistency, competitiveness, and commitment to development continue to separate him.
Costello_coaching retweeted
Blessed to announce my commitment to Wake Forest!
I want to thank God, my Family, teammates, coaches, and everyone who has been there supporting me! @WakeBaseball @CoachTRooney @SCBaseball_Var @CostCoaching1
🤖 Made with AI
Costello_coaching retweeted
A lot of athletes don’t have a work ethic problem.
They have a plan problem.
No real routine in the gym.
No structured arm care.
No throwing progression.
No mobility or recovery plan.
At Costello Coaching, we take the guesswork out of development and give athletes a structured plan to follow every day.
Isaiah Hearn
💪 6’4” left-handed bat
⚡️ High-level speed & athleticism
💣 Big-time power potential
📈 One of the most talented athletes we’ve had the chance to work with
Been awesome working with Isaiah and watching his game continue to grow. Excited to see what’s next. @IsaiahHearn26
Andrew Chute | Xavier Commit ⚾️
Andrew came to Costello Coaching as a big, physical left-handed hitter with a ton of upside.
⚡ Improved speed and athleticism
💪 Added strength and physicality
📈 Made key adjustments to his swing and overall game
Now committed to Xavier, Andrew keeps developing with the upside to put himself on the radar for the 2027 MLB Draft.
Costello Coaching → The Next Level. @andrewchute20
Brayden Goldstein — Sierra Canyon High School
A 6’5” left-handed bat with serious upside. Brayden has added 15 pounds, continues to get stronger, and is developing into a real power threat while keeping that smooth swing.
Whether it’s college baseball or pro ball, someone is going to be very lucky to have him. Great kid, relentless worker, and a name to watch. 👀📈⚾️ @braygold8
📈 ATHLETE SPOTLIGHT: Luke Casarez
Luke started at 77 mph when he first began training.
Now he’s topping 97 mph and is a Pepperdine commit.
Years of staying consistent, paying attention to the details, and continuing to develop.
The work adds up. ⚾️
📈 ATHLETE SPOTLIGHT: Chase Renzo
In just 8 months, Chase has added 12 lbs of lean muscle with us and is now 88–89 mph in bullpens.
Strike-thrower, competitor, and a guy who keeps putting the work in.
Some program is going to get a really good one. ⚾️ @Chase__Renzo
Gavin Geyer is the definition of trusting the process.
📈 76 MPH → 90–91 MPH
💪 160 lbs → 205 lbs
📚 4.3 GPA
He shows up every day, follows the Costello Coaching App, attacks his training with intent, and never looks for shortcuts. His progress comes from how hard he works when nobody is watching. @gavin_geyer2027