Prep Baseball Report
Karson Stiefer
Karson Stiefer
Karson Stiefer
Karson Stiefer

CLASS OF 2025

LHP
LHP

Karson
Stiefer


Prairie Ridge (HS) • IL
6' 1" • 168LBS
L/L • 19yr 2mo
Travel Team: GRB Rays
2025 National

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2025 State

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Best Of Stats

Pitching

Fastball

82.4
Velocity (max)
2/10/24
80 - 82
Velo Range
2/10/24
1920
Spin Rate (avg)
2/10/24

Changeup

72.1 - 73.3
Velo Range
2/10/24
1508
Spin Rate (avg)
2/10/24

Curveball

70 - 72
Velo Range
2/10/24
1794
Spin Rate (avg)
2/10/24

Slider

71 - 72
Velo Range
2/10/24
1796
Spin Rate (avg)
2/10/24
Power
92.6
Exit Velocity (max)
2/11/23
87.9
Exit Velocity (avg)
2/10/24
348
Distance (max)
2/10/24
67
Sweet Spot %
2/11/23
Hitting
24.3
Hand Speed (max)
2/11/23
75.1
Bat Speed (max)
2/11/23
20.2
Rot. Acc (max)
2/11/23
50
Hard Hit %
2/10/24
Run
7.47
60-yd
7/07/21
3.86
30-yd
2/10/24
1.67
10-yd
2/11/23
18.8
Run speed (max)
2/10/24
Defense
74
INF Velo
2/11/23
-
OF Velo
-
C Velo
-
Pop Time

Game Performance

Notes

Comments

4/22/25
Wisconsin-Parkside Commit. Currently ranked No. 229 in the state. A lean, projectable frame at 6-foot-1, 168 pounds. Batted second and played first base. He collected three hits in the contest including a double and two singles while scoring three runs and driving in one. He showed high-level bat-to-ball skills, putting the ball in-play each time he came up. Defensively, his ability to stretch for the ball helped his teammates on a couple occasions corralling in throws to record outs.
8/04/24

Verbally committed to Wisconsin-Parkside.

2/10/24

Positional Profile: LHP
Body: 6-1, 168-pounds. Lean, projectable frame with room to fill out.
Delivery: Medium leg lift with coil into balanced point, drop/drive delivery down the mound.
Arm Action: LH. Long arm in the back, high 3/4 arm slot.
FB: T82, 80-82 mph. Has life out of the hand, locates to the arm side. Heavy arm-side run. T2029, 1920 average rpm.
CB: 70-72 mph. Gradual 1/7 shape, flashes depth. Plays at the bottom of the zone. T1864, 1794 average rpm.
SL: 71-72 mph. Flashes sharp 2/8 shape at times. Developing. T1882, 1796 average rpm.
CH: 72-73 mph. Arm-side fade with depth. Has advanced feel for the pitch and the zone. T1643, 1508 average rpm.

2/10/24

Positional Profile: LHP
Hit: LHH. Tall, open setup, small leg lift, medium stride. Quick hands, flat path with some whip through the zone, looks to keep the ball on a line. 67.6 mph bat speed with 11 G’s of rotational acceleration.
Power: 92 max exit velocity, averaged 87.9 mph. 348’ max distance.
Arm: LH. INF - 69 mph. Loose arm action with some whip. Accurate, low 3/4 arm slot.
Defense: Athletic actions, fluid footwork, soft hands, moves well around the bag with some feel.
Run: 3.86 30-yard dash.

2/15/23

1B/LHP Karson Stiefer (Prairie Ridge) - is an athletic, left/left, two-way prospect. Stiefer, listed at 6-foot, 163-pounds, ran a 3.87 30-yard split, second best of the event. At the plate he stays short and quick to the baseball looking to control the barrel and spray hard line-drive contact to all fields. Defensively, he is an asset at first base with an understanding and feel for the position. On the mound, he filled up the strike zone with a polished three-pitch mix and fastball that topped at 80 mph.

2/11/23

Positional Profile: 1B/LHP
Body: 6-0, 163-pounds. Wiry frame with room for continued physical development.
Hit: LHH. Narrow, open setup, long stride. Quick, direct hands, on the barrel, uphill path and worked the middle of the field.
Power: 93 max exit velocity, averaged 87.5 mph.
Arm: LH. INF - 74 mph. Loose, whippy arm, 3/4 release.
Defense: Athletic actions, active footwork, steady hands, two-hand gather, secures the ball into his body,
Run: 3.87 runner in the 30-yard dash. 

Delivery: Clean operation, medium leg-lift into balance point, drop/drive lower-half, stride works in-line.
Arm Action: LH. Long out of the glove into a 3/4 slot.
FB: T81, 78-80 mph. Plays with sink to the arm-side.  T1830, 1755 average rpm.
CB: 68-69 mph. Flashed sharp 1/7 shape.  T1796, 1659 average rpm.
CH: 69-71 mph. Clean out of the hand, fades to the arm-side.  T1586, 1471 average rpm.

 

4/16/22

Uncommitted. Wiry, 6-foot, 155-pound frame, long limbs with room for added growth. Made his varsity debut ad only a freshman and impressed over his four innings of work. The southpaw’s arm works long out of the glove into a ¾ slot, playing loose to release. Down the mound, he works with a slight drop/drive lower-half, moving quickly from balance point into a stride that works in-line to the plate, front foot landing square. His fastball sat mostly 75-77 mph with consistent life to the arm-side, setting up his off-speeds effectively. His go-to secondary offering was a heavy fading changeup, thrown confidently and often with feel for the zone, 66-69 mph. He also went to a 65-66 mph curveball, playing off a gradual 1/7 plane. 

7/07/21

Positional Profile: LHP/1B
Body: 5-10, 147-pounds.
Delivery: Tall and fall delivery, stays tall at release creating a downward angle on the hitter.
Arm Action: LH. Long, high 3/4 slot.
FB: T74, 73-74 mph. Occasional arm-side movement. T1632, 1473 average rpm.
CB: 57-59 mph. Gradual 1/7 shape. T1412, 1309 average rpm.
CH: 60-61 mph. Flashed arm-side fade.

Hit: LHH. Open setup, knee-knocks into a long stride.  Loose/level path to the ball with a line-drive approach.
Power: 83.04 max exit velocity, averaged 71.35 mph. 269’ max distance.
Arm: LH. INF - 74 mph. High 3/4 slot.
Defense: Soft hands with a clean transfer, fluid footwork around the bag.
Run: 7.47 runner in the 60. 

1/31/21

Positional Profile: LHP
Body: 5-foot-9, 137-pounds.
Defense: Steady hands, works through the ball, smooth feet at times, advanced 1B actions for his age.
Arm: LH. INF - 65 mph. Short action, high 3/4 arm slot.
Hit: LHH. Open setup, rear leg load, front foot starts on toes, toe-tap trigger. Loose, fluid swing, repeatable actions, short/uphill path, consistent line drives.
Power: 75 mph exit velocity from the tee.
Run: 4.51 home-to-first. 

Delivery: Tall and fall delivery, smooth rhythm, leg kick works across body, lands square to target.
Arm Action: LH. Long action, over-the-top arm slot.
FB: T69, 68-68 mph. Mostly straight, intent to play at the top of the zone.
CB: 57-58 mph. 1/7 shape, tight at times, flashed strikes.
CH: 56-61 mph. Straight change, arm speed same as fastball.

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