
Left-handed pitcher · University of New Haven
Chris Yannella
Get healthy, get stronger, and throw hard enough to pitch in college.
Outcome
Fastball 79 to 94 mph since he came to ATP. First 80, first 90, then 94 as a college freshman. Foran High School to the University of New Haven.
- Fastball, topspring 2024 to summer 2026
- 79to94mph
- Sitting velocitysummer 2026
- 89 to 92mph
Where it started.
A left-hander at 68 to 70 mph, with a 75 mph exit velocity and a 7.99 sixty on his January 2023 Prep Baseball Report card. At 71 as a sophomore, he topped 79 in his junior spring after a UCL strain. In his own words, he arrived injured and low on confidence.
What they wanted
To get healthy, then strong, then recruited.
What ATP saw.
ATP evaluated 4 of the seven domains for this case. The lit circles are where the history sent us. Tap any circle to see what ATP looks at there.
Working diagnosis
Arm health and confidence first, then strength, then intent. The public radar moved 12 mph inside the first four and a half months; ATP's moved 12 mph inside the year, and 15 by the summer after his freshman year.

Capacity · Tissue · Mental · SkillTap a circle to see what ATP looks at there.
In order.
What came first, and what came after.
Priority 1: Arm health, and the confidence to throw at intent again
Priority 2: Strength and rotational power
Priority 3: Velocity at intent on a throwing program
What we did.
The tools follow the diagnosis. Every item here was chosen after the priorities were set.
Interventions
- Semi-private training and throwing semi-privates
- College Winter Throwing, winter 2025 to 2026
What changed.
About a year to the 91; 94 two summers later.
- 01Fastball 79 to 91 mph on ATP's radar in about a year, and an ERA from the upper 3s to 1.06, in his words
- 02His first 80 and his first 90 came at ATP, in his words. Then 94 the summer after his freshman year, sitting 89 to 92
- 03At showcases: 68 to 70 mph (Prep Baseball Report, January 2023) to 82 mph (Perfect Game, August 2024), the 75th percentile fastball for the class of 2025
- 04Pitching at the University of New Haven
On the record
- 2023-01-29Prep Baseball Report Scout Day, Mission City Baseball, 14 months before ATP68 to 70 mph fastball; 75 mph exit velocity; 72 mph arm; 7.99 sixtyPrep Baseball Report
- 2022 to 2023Sophomore season, Foran High School71 mphChris Yannella, September 2026
- 2024-03ATP radar reading, junior spring, after a UCL strain79 mphATP radar, confirmed by Josh Heenan; Chris Yannella, September 2026
- 2024-08-02Perfect Game reading, month four and a half82 mph; 75th percentile for the class of 2025Perfect Game
- 2025Summer after senior spring91 mph, about a year inATP radar, confirmed by Josh Heenan; Chris Yannella, September 2026
- 2026Summer after his freshman yearTopped 94 mph, sitting 89 to 92Chris Yannella, September 2026
- 2026-09University of New Haven, first yearPerfect Game profile; confirmed by ATP (Josh Heenan), September 2026
Now.
Left-handed pitcher, University of New Haven, first year.
“Before I started at ATP, I was injured, had low confidence, and had a high ERA. ATP helped me get stronger not only physically, but mentally as well. My recovery time for my UCL strain only took a couple months. My velocity jumped from 79 to 91 in 1 year and my ERA dropped from upper 3 to 1.06.”

Find what’s limiting you.
Every case here started the same way: an evaluation, a working diagnosis, a decision about what comes first.
