82
Velocity (max)
7/31/25
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Peterson has consistently impressed us from the mound in the past, most recently on a couple different looks this past spring, but at the State Games, he would showcase a smooth LH bat, with a narrow setup, a long stride that gains ground, and a flat bat path. Fluid motions on the mound, quick, high tuck into a drop-and-drive delivery, loose and fluid arm with big arm-side run (T81.8 mph). 5-foot-10, 150-pound frame with room to fill out.
Positional Profile: OF/LHP
Body: 5-10, 152-pounds. Wiry, high-waisted frame with some strength in the lower half.
Delivery: Quick, high leg lift with tuck, fluid motion, drop and drive lower half.
Arm Action: LH. Loose, fluid, half-circle arm action, sidearm.
FB: T82, 79-81 mph. Slight arm-side run with some sink. T2416, 2199 average rpm.
CB: 70-73 mph. Sweeper shape with slight depth. T2559, 2358 average rpm.
ATH: 6.86 runner in the 60. 1.69 and 3.80 in the 10 and 30 yard splits. 26.30 max vertical.
Positional Profile: OF/LHP
Body: 5-10, 152-pounds. Wiry, high-waisted frame with some strength in the lower half.
Hit: LHH. Tall, narrow setup, long stride, gains ground to the mound. Flat path, works on top of the ball, ball jumps to all fields. 69.3 mph bat speed with 19 G's of rotational acceleration.
Power: 96 max exit velocity, averaged 81.5 mph. 339' max distance.
Arm: LH. OF-81 mph. Quick arm action, 3/4 slot.
Defense: Stays behind the ball, athletic actions.
ATH: 6.86 runner in the 60. 1.69 and 3.80 in the 10 and 30 yard splits. 26.30 max vertical.
Vizual Edge: 63.44 Edge Score
Uncommitted, currently ranked No. 120 in the state’s junior class, standing at a wiry 5-foot-11, 153 pound frame. Shaefer came on in relief and tossed 6.2 scoreless innings in relief, striking out five batters and walking one. The left-hander can really pitch, locating two pitches in the zone consistently, an upper-70s fastball and a breaking ball with late two-plane action. Each pitch earning a handful of swing and miss, neither getting hit hard throughout the outing.
+ LHP/1B Shaefer Peterson (Kimberly, 2026) is a long levered left-handed pitching and first baseman who measured in at 5-foot-11, 153. Peterson, an athlete, ran a solid 7.13 seconds 60 yard dash showing some quickness and burse to his gate. On the mound, the junior deployed a quick tempo’d delivery and ran the heater up to 82 mph with feel for the zone. He paired the fastball with a sweeping slider and a change up with heavy fading action in the hitting zone. With the bat, Peterson showcased a smooth left-handed swing and produced a notable max exit velocity of 91 mph. Additionally, Peterson proved he is a capable defender at first base with smooth actions and feel around the bag. Overall, Peterson had a nice day and has a chance to pop once he adds strength.
Shaefer Peterson, Kimberly (WI), 2026
Positional Profile: 1B/LHP
Body: 5-11, 153-pounds. Wiry build, will add.
Delivery: Quick tempo, rides back leg into a long stride.
Arm Action: LH. Fully extends arm, low 3/4 slot.
FB: T82, 79-81 mph. Heavy arm side run, sinks more out of stretch. T2336, 2189 average rpm.
SL: 69-71 mph. Sweeping action, keeps low. T2529, 2450 average rpm.
CH: 76-77 mph. Heavy fade with fastball intent. T2089, 1737 average rpm.
ATH: 7.13 runner in the 60. 1.73 and 3.92 in the 10 and 30 yard splits. 25.40 max vertical.
Shaefer Peterson, Kimberly (WI), 2026
Positional Profile: 1B/LHP
Body: 5-11, 153-pounds. Wiry build, will add.
Hit: LHH. Even stance, leg kick trigger. Direct path, up the middle approach, ball jumps. 71.2 mph bat speed with 14 G's of rotational acceleration.
Power: 91 max exit velocity, averaged 85.6 mph. 303' max distance.
Arm: LH. INF-79 mph. Easy throw, long action, low 3/4 slot.
Defense: Soft hands, clean feet and actions, can turn the 3-6-3, aggressive on bunts can play on the run.
ATH: 7.13 runner in the 60. 1.73 and 3.92 in the 10 and 30 yard splits. 25.40 max vertical.
Vizual Edge: 78.32 Edge Score
Shaefer Peterson, Kimberly (WI), 2026
Positional Profile: 1B/LHP
Body: 5-10, 148-pounds. Athletic, wiry, more fill coming.
Delivery: Methodical, high leg kick into a drop and drive lower half, on line to home.
Arm Action: LH. Full arm action into a low 3/4 slot.
FB: T75, 72-75 mph. Some life out of the hand, locates to the bottom part of the zone. T2148, 2120 average rpm.
SL: 63-65 mph. Tight sweeping movement, flashes sharp break. T2191, 2153 average rpm.
CH: 67-68 mph. Developing feel for the pitch, some feel for the zone. T1691, 1606 average rpm.
ATH: 7.08 runner in the 60. 1.67 and 3.89 in the 10 and 30 yard splits. 32.30 max vertical.
Shaefer Peterson, Kimberly (WI), 2026
Positional Profile: 1B/LHP
Body: 5-10, 148-pounds. Athletic, wiry, more fill coming.
Hit: LHH. Stock set up, toe tap gather, gets back to center on time. Turns hard on back side, uses back side well, short and direct path, drives balls to pull side and spray to all fields. 68.9 mph bat speed with 16 G's of rotational acceleration.
Power: 85 max exit velocity, averaged 80.8 mph. 315' max distance.
Arm: LH. INF-67 mph. 3Q slot, repeats it, shows accuracy.
Defense: Two hand gather, has feel around first base bag.
ATH: 7.08 runner in the 60. 1.67 and 3.89 in the 10 and 30 yard splits. 32.30 max vertical.