Prep Baseball Report
Alex Marx
Alex Marx

CLASS OF 2029

SS
RHP

Alex
Marx

The Fessenden (HS) • MA
6' 4" • 175LBS
R/R • 15yr 9mo
Travel Team: Boston Prime
2029 National

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2029 State

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Best of Snapshot
Positional Tools Velos / Pop
TrackMan Hitting
Blast
TrackMan Pitching
Pitching Velos
VALD
Comments
Contact

Best Of Stats

Hitting
23.2
Hand Speed (max)
2/21/26
73.3
Bat Speed (max)
2/21/26
8.9
Rot. Acc (max)
2/21/26
40
Hard Hit %
2/21/26
Power
96.2
Exit Velocity (max)
2/21/26
89
Exit Velocity (avg)
2/21/26
336
Distance (max)
2/21/26
73
Sweet Spot %
2/21/26
Run
7.48
60-yd
3/09/25
-
30-yd
-
10-yd
-
Run speed (max)
Defense
81
INF Velo
2/21/26
-
OF Velo
-
C Velo
-
Pop Time
Pitching

Fastball

88
Velocity (max)
2/21/26
86 - 88
Velo Range
2/21/26
2076
Spin Rate (avg)
2/21/26

Changeup

79.2 - 79.3
Velo Range
2/21/26
1607
Spin Rate (avg)
2/21/26

Curveball

66.4 - 68.2
Velo Range
3/09/25
1873
Spin Rate (avg)
3/09/25

Slider

73.7 - 74.3
Velo Range
2/21/26
1940
Spin Rate (avg)
2/21/26

Positional Tools

2026
2025
Infield Velocity
81.0
Infield Velocity
73.0

Hitting

2026
2025
Exit Velocity Max
96.2
Exit Velocity Avg
89.0
Distance Max
336
Distance Avg
254
Launch Angle Avg
21.9647
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
85.4
Exit Velocity Avg
77.2
Distance Max
294
Distance Avg
119
Launch Angle Avg
8.4553
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: Boston Prime 2.21.26
Feb 21, 2026
Trackman - Hitting
96.2
Exit Velocity (max)
89.0
Exit Velocity (avg)
254
Distance (avg)
336
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: Boston Prime 3.9.25
Mar 9, 2025
Trackman - Hitting
85.4
Exit Velocity (max)
77.2
Exit Velocity (avg)
119
Distance (avg)
294
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2026
2025
Hand Speed Max
23.2
Hand Speed Avg
22.1
Bat Speed Max
73.3
Bat Speed Avg
70.5
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
20.7
Hand Speed Avg
18.5
Bat Speed Max
65.4
Bat Speed Avg
61.9
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Scout Day: Boston Prime 2.21.26
Feb 21, 2026
Blast - Hitting
23.2
Hand Speed (max)
22.1
Hand Speed (avg)
73.3
Bat Speed (max)
70.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Scout Day: Boston Prime 3.9.25
Mar 9, 2025
Blast - Hitting
20.7
Hand Speed (max)
18.5
Hand Speed (avg)
65.4
Bat Speed (max)
61.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2026
2025
Fastball
Velocity Max
87.9
Fastball
Velocity Avg
87.0
Fastball
Spin Rate Avg
2076
Fastball
Spin Score Avg
23.9
Fastball
Total Movement Avg
Changeup
Velocity Avg
79.3
Changeup
Spin Rate Avg
1607
Changeup
Total Movement Avg
Slider
Velocity Avg
74.0
Slider
Spin Rate Avg
1940
Slider
Total Movement Avg
Sinker
Velocity Avg
84.6
Sinker
Spin Rate Avg
1982
Sinker
Total Movement Avg
Fastball
Velocity Max
77.7
Fastball
Velocity Avg
76.3
Fastball
Spin Rate Avg
1974
Fastball
Spin Score Avg
25.9
Fastball
Total Movement Avg
Curveball
Velocity Avg
67.3
Curveball
Spin Rate Avg
1873
Curveball
Total Movement Avg
Scout Day: Boston Prime 2.21.26
Feb 21, 2026
Trackman - Fastball
87.9
Velocity (max)
86.4 - 87.6
Velo Range
88.5
Eff Velocity (avg)
2,170
Spin Rate (max)
2,076
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
74.3
Velocity (max)
73.7 - 74.3
Velo Range
75.2
Eff Velocity (avg)
1,993
Spin Rate (max)
1,940
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
79.3
Velocity (max)
79.2 - 79.3
Velo Range
82.0
Eff Velocity (avg)
1,608
Spin Rate (max)
1,607
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Sinker
84.6
Velocity (max)
84.5 - 84.6
Velo Range
86.6
Eff Velocity (avg)
2,030
Spin Rate (max)
1,982
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Scout Day: Boston Prime 3.9.25
Mar 9, 2025
Trackman - Fastball
77.7
Velocity (max)
75.0 - 77.7
Velo Range
77.6
Eff Velocity (avg)
2,036
Spin Rate (max)
1,974
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
68.2
Velocity (max)
66.4 - 68.2
Velo Range
67.9
Eff Velocity (avg)
1,912
Spin Rate (max)
1,873
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

Pitching Velos

2026
Fastball
Velocity Max
88.0
Fastball
Velocity Avg
87.0
Changeup
Velocity Avg
79.0
Slider
Velocity Avg
74.0
Scout Day: Boston Prime 2.21.26
Feb 21, 2026
Pitching
88
Max FB
86 - 88
FB
79 - 79
CH
74 - 74
SL

Game Performance

2025
60 Yard Dash
7.48

Vizual Edge

Pitch Ai

Notes

News

Comments

2/21/26
Alex Marx, The Fessenden School (MA), 2029
Positional Profile: SS/RHP
Body: 6-3, 155-pounds.
Arm Action: RH
FB: T88, 86-88 mph. T2170, 2076 average rpm.
SL: 74-74 mph. T1993, 1940 average rpm.
CH: 79-79 mph. T1608, 1607 average rpm.
2/21/26
Alex Marx, The Fessenden School (MA), 2029
Positional Profile: SS/RHP
Body: 6-3, 155-pounds.
Hit: RHH
Power: 96 max exit velocity, averaged 89.0 mph. 336' max distance.
Arm: RH. INF-81 mph.
3/09/25
6-foot-3, 155-pound right-handed hitting middle infielder and right-handed pitcher. Defensively, he threw 73 mph during the infield workout at the facility. The feet need to remain active during the fielding process of the baseball. The bat had an exit velocity of 85 mph. The setup at the dish was athletic and upright in posture. The front foot gains minimal ground and the path to contact was long. On the mound, the fastball sat 75-77 mph and showed minimal arm side action to it. The breaking ball was 66-68 mph and big in shape. The changeup is a developing pitch for him. The frame is lanky and the arm works freely. The lift is repeated and the delivery is solid in tempo. The slot is 3/4 and he is aggressive with his arm.

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