Prep Baseball Report

Prep Baseball Illinois Pitcher of the Week: Jackson Heidemann

By: Pete Hamot
Assistant Director, Illinois & Wisconsin

Sophomore right-hander Jackson Heidemann (Harlem) had himself a week, helping the Huskies to a 3-1 clip with a couple strong performances on the mound. In total on the week, Heidemann went a perfect 2-0 with 10.1 innings, just two hits allowed, 17 strikeouts and two walks. For his efforts, Heidemann has been named this week’s ‘Pitcher of the Week’.

His first outing came in a 26-0 win over Rockford East in which he fired a perfect four innings, striking out 11 along the way with 35 of his 44 pitches being for strikes. 

His second outing of the week came against a strong Freeport club, as he fired 6.1 innings while scattering just two hits, two walks and six strikeouts in their 3-0 win. He helped his own cause at the plate in this game as well, finishing the day 1-for-3 with two RBIs. 

On the year, Heidemann boasts a spotless 3-0 record with 19.1 innings pitched, a 1.81 ERA, 1.086 WHIP, 33 strikeouts, 11 walks and an opposing batting average of .147. Listed at 6-foot-2, 177-pounds, the right-hander gave our staff an upside look over the winter with a fastball up to 84 mph that set up a low-70s curveball and mid-70s changeup. He’ll be an arm to watch as he continues to develop throughout the high school ranks.

Jackson Heidemann

Class of 2026 / RHP

Player Information

  • Graduating Class: 2026
  • Primary Position: RHP
    Secondary Position: 1B
  • High School: Harlem
    State: IL
  • Summer Team: GRB-Madison Green 16u
  • Height: 6-2
    Weight: 177lbs
  • Bat/Throw: R/R

Scouting Report


Jackson Heidemann, Harlem (IL), 2026
Positional Profile: RHP/1B
Body: 6-2, 177-pounds. Lean frame, long limbs, high waist.
Delivery: Up tempo delivery, medium leg lift, tall and fall, shorter controlled stride.
Arm Action: RH. Medium loop, higher 3/4 slot.
FB: T84, 82-84 mph. Downhill tilt four-seam type. T2047, 1953 average rpm.
CB: 72-73 mph. 11/5 action, flashed sharpness. T2199, 2102 average rpm.
CH: 75-77 mph. Decels, fade with some depth. T1665, 1580 average rpm.
ATH: 7.70 runner in the 60. 23.30 max vertical.



We're thankful for the POTW submissions we received from the coaches across the state. The players who garnered POTW consideration will earn a place within tomorrow's Diamond Notes story, so be on the lookout for that.

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