
Right-handed pitcher · St. John's, then Manhattan University
Andrew Castelluccio
Turn a 73 mph fastball into a Division I arm.
Outcome
Fastball 73 to 87 mph in two years. Ridgefield High School to St. John's, then Manhattan University.
- Fastball
- 73to87mph
- Exit velocity
- 71to82mph
- Perfect Game grade
- 8.5
Where it started.
A Ridgefield freshman at 73 mph, with a 71 mph exit velocity and a 7.58 sixty on his February 2019 Prep Baseball Report card. He started at ATP that June, before his sophomore year.
What they wanted
A fastball that would make a Division I program call.
What ATP saw.
ATP evaluated 3 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
Capacity, then transfer. The public record climbs in steps that match the training: 76 to 77 mph at month four, 83 by month nine, 85 at month sixteen, 87 at month twenty. Perfect Game's own progression note credits 14 mph of fastball, 14 mph of infield velocity and 14 mph of exit velocity since February 2019.

Capacity · Skill · RecoveryTap a circle to see what ATP looks at there.
In order.
What came first, and what came after.
Priority 1: Strength and bodyweight through the frame
Priority 2: Strength into the delivery, retested at showcases every few months
Priority 3: Durability into a college workload
What we did.
The tools follow the diagnosis. Every item here was chosen after the priorities were set.
Interventions
- Private and semi-private training
- ATP's Summer College Pitching Development Program
What changed.
Two years to the 87. Four college seasons.
- 01Fastball 73 mph (Prep Baseball Report, February 2019) to 87 mph (Perfect Game, February 2021)
- 02Exit velocity 71 to 82 mph and an 85 mph infield arm over the same two years
- 03Perfect Game 8.5 grade; four-year letterwinner, senior captain and FCIAC All-East at Ridgefield, 2022
- 04Committed to St. John's. 2-0 as a Big East freshman with an ERA under 1.50, and Big East Academic Honor Roll
- 05Big East Tournament champions, 2024. Then two seasons at Manhattan University, 42 innings and 28 strikeouts in 2025
On the record
- 2019-02-17Prep Baseball Report CT Winter College Showcase73 mph fastball; 71 mph exit velocity; 7.58 sixtyPrep Baseball Report
- 2019-10-05Prep Baseball Report Fall Top Prospect Games, month four76 to 77 mphPrep Baseball Report
- 2020-03-04Prep Baseball Report CT Pitcher Analysis, month ninetouched 83 mphPrep Baseball Report
- 2020-10-14Prep Baseball Report Scout Day, Baseball U CT, month sixteen85 mphPrep Baseball Report
- 2021-02-20Perfect Game Northeast Indoor Showcase, month twenty87 mph fastball; 82 mph exit velocity; 85 mph infield velocity; 6-2, 185 lbPerfect Game ("+14 mph fastball, +14 infield, +14 exit velocity since 02/23/2019")
- 2022-06-01Committed to St. John's UniversityPerfect Game; Prep Baseball Report
- 2023St. John's freshman season2-0; 1.35 ERA on the St. John's bio, 1.46 on Manhattan's; Big East Academic Honor RollSt. John's Athletics; Manhattan Athletics
- 2024St. John's, Big East Tournament champions6 appearances, 10 innings, 7 strikeoutsManhattan Athletics bio
- 2025Manhattan University junior season12 games, 7 starts, 42 innings, 28 strikeoutsManhattan Athletics bio
- 2026Manhattan University senior season9 games, 2 starts, 1-1, 16.2 innings, 11 strikeoutsManhattan Athletics bio
Now
NowPitched his senior season at Manhattan University in 2026 after two years at St. John's. Finance major.

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