Prep Baseball Report
Jack Serafini
Jack Serafini
Jack Serafini
Jack Serafini
Jack Serafini
Jack Serafini

CLASS OF 2027

2B
SS

Jack
Serafini

Milton Academy (HS) • MA
6' 2" • 170LBS
R/R • 17yr 1mo
Travel Team: GBG Northeast
2027 National

Rankings available to Premium Subscriber

Log In Subscribe to PrepBsl Plus

Commitment

UNCOMMITTED
Player has made a commitment?
Tell us where

Videos

This Area is only available to Prep Baseball Plus subscribers.

Best of Snapshot
Positional Tools Velos / Pop
TrackMan Hitting
Blast
TrackMan Pitching
Pitch Scores
Pitching Velos
Swift
News
Comments
Contact

Best Of Stats

Hitting
24
Hand Speed (max)
10/08/23
76.1
Bat Speed (max)
2/28/26
19.3
Rot. Acc (max)
2/28/26
79
Hard Hit %
2/28/26
Power
97.9
Exit Velocity (max)
2/28/26
91.7
Exit Velocity (avg)
2/28/26
329
Distance (max)
2/28/26
60
Sweet Spot %
8/09/23
Run
7.49
60-yd
9/28/25
-
30-yd
-
10-yd
-
Run speed (max)
Defense
77
INF Velo
2/28/26
-
OF Velo
-
C Velo
-
Pop Time
Pitching

Fastball

76.9
Velocity (max)
3/08/25
74.7 - 76.7
Velo Range
3/08/25
1842
Spin Rate (avg)
8/09/23

Curveball

62.9 - 65.5
Velo Range
3/08/25
1607
Spin Rate (avg)
3/08/25

Positional Tools

2026
2025
2024
2023
Infield Velocity
77.0
60 Yard Dash
7.49
Infield Velocity
76.0
Power / Speed Score
12.4
60 Yard Dash
7.56
Infield Velocity
70.0
Power / Speed Score
11.1
60 Yard Dash
7.70
Infield Velocity
71.0
Power / Speed Score
10.7
2024 New England TPG Trials 6.9.24
Jun 9, 2024
Position
7.56
60-yard
70
INF Velo
84
Exit Velo
Power Speed Score
2023 Massachusetts Fall Prospect Showcase
Oct 8, 2023
Position
7.70
60-yard
70
INF Velo
80
Exit Velo
Power Speed Score

Hitting

2026
2025
2023
Exit Velocity Max
97.9
Exit Velocity Avg
91.7
Distance Max
329
Distance Avg
183
Launch Angle Avg
11.1576
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
93.0
Exit Velocity Avg
79.6
Distance Max
311
Distance Avg
159
Launch Angle Avg
19.0281
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
82.0
Exit Velocity Avg
69.2
Distance Max
253
Distance Avg
170
Launch Angle Avg
21.7827
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: GBG 2.28.26
Feb 28, 2026
Trackman - Hitting
97.9
Exit Velocity (max)
91.7
Exit Velocity (avg)
183
Distance (avg)
329
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: GBG/Evolution 9.28.25
Sep 28, 2025
Trackman - Hitting
93.0
Exit Velocity (max)
77.1
Exit Velocity (avg)
176
Distance (avg)
277
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: GBG 3.8.25
Mar 8, 2025
Trackman - Hitting
89.0
Exit Velocity (max)
81.8
Exit Velocity (avg)
144
Distance (avg)
311
Distance (max)
Sweet Spot %
Fly Ball %
Ground Ball %
2023 Massachusetts Fall Prospect Showcase
Oct 8, 2023
Trackman - Hitting
79.9
Exit Velocity (max)
65.4
Exit Velocity (avg)
159
Distance (avg)
247
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 New England Future 50 - Class of 2027 (Invite Only)
Aug 9, 2023
Trackman - Hitting
82.0
Exit Velocity (max)
71.9
Exit Velocity (avg)
177
Distance (avg)
253
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2026
2025
2024
2023
Hand Speed Max
21.2
Hand Speed Avg
20.5
Bat Speed Max
76.1
Bat Speed Avg
68.0
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
22.5
Hand Speed Avg
20.9
Bat Speed Max
74.1
Bat Speed Avg
66.7
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
23.0
Hand Speed Avg
21.2
Bat Speed Max
72.1
Bat Speed Avg
69.5
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
24.0
Hand Speed Avg
20.2
Bat Speed Max
70.8
Bat Speed Avg
65.8
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Scout Day: GBG 2.28.26
Feb 28, 2026
Blast - Hitting
21.2
Hand Speed (max)
20.5
Hand Speed (avg)
76.1
Bat Speed (max)
68.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Scout Day: GBG/Evolution 9.28.25
Sep 28, 2025
Blast - Hitting
22.0
Hand Speed (max)
21.0
Hand Speed (avg)
70.3
Bat Speed (max)
65.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Scout Day: GBG 3.8.25
Mar 8, 2025
Blast - Hitting
22.5
Hand Speed (max)
20.7
Hand Speed (avg)
74.1
Bat Speed (max)
67.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 New England TPG Trials 6.9.24
Jun 9, 2024
Blast - Hitting
23.0
Hand Speed (max)
21.2
Hand Speed (avg)
72.1
Bat Speed (max)
69.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Massachusetts Fall Prospect Showcase
Oct 8, 2023
Blast - Hitting
24.0
Hand Speed (max)
20.6
Hand Speed (avg)
67.3
Bat Speed (max)
64.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 New England Future 50 - Class of 2027 (Invite Only)
Aug 9, 2023
Blast - Hitting
21.0
Hand Speed (max)
19.7
Hand Speed (avg)
70.8
Bat Speed (max)
67.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2025
2023
Fastball
Velocity Max
76.9
Fastball
Velocity Avg
75.7
Fastball
Spin Rate Avg
1827
Fastball
Spin Score Avg
24.1
Fastball
Total Movement Avg
Curveball
Velocity Avg
64.4
Curveball
Spin Rate Avg
1607
Curveball
Total Movement Avg
Fastball
Velocity Max
73.3
Fastball
Velocity Avg
70.0
Fastball
Spin Rate Avg
1790
Fastball
Spin Score Avg
25.6
Fastball
Total Movement Avg
Curveball
Velocity Avg
59.4
Curveball
Spin Rate Avg
1451
Curveball
Total Movement Avg
Scout Day: GBG 3.8.25
Mar 8, 2025
Trackman - Fastball
76.9
Velocity (max)
74.7 - 76.7
Velo Range
72.2
Eff Velocity (avg)
1,950
Spin Rate (max)
1,827
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
65.5
Velocity (max)
62.9 - 65.5
Velo Range
60.1
Eff Velocity (avg)
1,615
Spin Rate (max)
1,607
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Massachusetts Fall Prospect Showcase
Oct 8, 2023
Trackman - Fastball
73.3
Velocity (max)
67.6 - 71.9
Velo Range
68.9
Eff Velocity (avg)
1,940
Spin Rate (max)
1,759
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
62.8
Velocity (max)
58.6 - 61.5
Velo Range
58.2
Eff Velocity (avg)
1,549
Spin Rate (max)
1,449
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 New England Future 50 - Class of 2027 (Invite Only)
Aug 9, 2023
Trackman - Fastball
72.8
Velocity (max)
68.7 - 72.1
Velo Range
68.8
Eff Velocity (avg)
1,937
Spin Rate (max)
1,842
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
59.5
Velocity (max)
58.5 - 59.5
Velo Range
55.8
Eff Velocity (avg)
1,483
Spin Rate (max)
1,454
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)

Pitch Scores

2023
Fastball
Rise+

Pitching Velos

2024
2023
Fastball
Velocity Max
73.0
Fastball
Velocity Avg
70.5
Curveball
Velocity Avg
58.5
Fastball
Velocity Max
73.0
Fastball
Velocity Avg
72.5
Curveball
Velocity Avg
61.0
2024 New England TPG Trials 6.9.24
Jun 9, 2024
Pitching
73
Max FB
69 - 72
FB
58 - 59
CB

Game Performance

2024
2023
RSi
Vertical Jump
Vertical Jump
2024 New England TPG Trials 6.9.24
Jun 9, 2024
Swift
0.91
RSI (max)
32.0
Jump Height (max)
2023 Massachusetts Fall Prospect Showcase
Oct 8, 2023
Swift
23.2
Jump Height (max)
18.5
Jump Height (avg)

Vizual Edge

Pitch Ai

Notes

Comments

2/28/26
Jack Serafini, Milton Academy (MA), 2027
Positional Profile: 2B/SS
Body: 6-2, 170-pounds.
Hit: RHH
Power: 98 max exit velocity, averaged 91.7 mph. 329' max distance.
Arm: RH. INF-77 mph.
3/08/25
6-foot-1, 150-pound right-handed hitting middle infielder and pitcher. The approach at the in the infield is solid as he moves his feet through the baseball, throwing 72 mph during the infield portion of the workout. The bat had an exit velocity of 89 mph. The setup at the dish was athletic and the front foot gains ground as the swing is launched. The path is clean to contact. On the mound, the fastball sat 75-76 mph with arm side run to it. The spin pitch was 65-66 mph and big in shape. The changeup is a developing pitch for him. The delivery solid in tempo and the arm swing is short on the backside.
6/09/24

Scouting Report: 6-foot, 145-pound, lean athletic frame, with room for added weight. A right-handed hitter, even feet, loose hands at the shoulders. The swing is smooth, a down to level path, with a higher finish. The approach is more middle of the field, spraying line drives. The exit velocity was clocked 84 mph, ran a 7.56 sixty-yard dash. Defensively, shows proper prep steps, works low and through the baseball. The arm action is loose, working from a 3/4 slot. The arm was clocked at 70 mph. Off the mound, simple repeatable delivery from the right-side. Working out of the full motion, lower half is inline, and is on time during foot strike. The arm action is loose, working from a 3/4 to higher slot, pitched down hill. The fastball was clocked at 73 mph. Showed a breaking ball with proper shape, will need to add fastball hand speed to it. Only a 2027.

Exit Velocity: 84 mph

Arm Velocity: 70 

Sixty-Yard Dash: 7.56

10/08/23

Jack Serafini: 2B/RHP, (2027) Milton Academy, MA. 5-foot-11, 130-pound athletic lean build. Projectable and athletic in the box, Serafini had a max exit velocity of 80 mph. (64.7 mph bat speed average). (20.6 mph hand speed average). Started in a balanced wide stance with a handsy load, then used a small stride. Bat speed is developing, uses a flat loose swing plane and level finish. Found multiple barrels with loud contact. Gap to gap approach. Capable in the infield, his best throw was registered at 70 mph; has developing soft hands, developing athletic feet, and a clean natural exchange. Fields the ball out front, movements laterally were developing athletically. Showed consistent accuracy to the base with a high ¾ slot. In the 60-yard dash, recorded a time of 7.7. Capable on the mound, showing developing arm speed he had a ¾ arm angle with a consistent arm action. Feel type pitcher and used some effort. Balance point is tall with in line shoulders during delivery. Lands closed with a falling off finish. Threw his fastball 72-73 mph; had control arm side around the zone and running action. (Max spin 1939; Avg 1759). His curveball (60-62) shows sweeping action and glove side command. (Max spin 1548; Avg 1449). 

 

8/09/23

Jack Serafini: 2B/RHP, (2027) Milton Academy, MA. 5-foot-11, 130-pound slim athletic build. Projectable and athletic during batting practice, Serafini's best exit velocity was 82 mph. (67.3 mph bat speed average). (19.7 mph hand speed average). Began in a wide tall stance with a wrapping load, then used a small stride. Bat speed was developing, had a loose uphill swing plane and high finish. Barreled up some balls with some loud contact. Line drive approach. Capable while in the infield, recorded position velocities up to 71 mph; has developing hands, a natural exchange, and developing athletic feet. Laterally, movements were developing athletically and fielded the ball out front. Had a high ¾ slot with consistent accuracy to the bag. During the event, clocked a 60 time of 8.0. Capable on the mound, showed  consistent arm action and a high ¾ arm angle with developing arm speed Feel type pitcher and showed some effort. Tall balance point with in line shoulders. Lands closed with a falling off finish. Threw his fastball 71-72 mph; shows arm side control and running action. (Max spin 1936; Avg 1842). Has sweeping action and glove side command on his curveball (58-59). (Max spin 1483; Avg 1454).

Draft Reports

Contact

Premium Content Area

To unlock contact information, you need to purchase a ScoutPLUS subscription.

Purchase Subscription
OR
Login

Twitter

Physical