Jackson
Heidemann

Verbally committed to Madison JC.

RHP Jackson Heideman (Harlem, 2026) is an uncommitted arm with a long-levered 6-foot-2, 182-pound frame. His fastball topped at 87.3 mph with 20.2 inches of induced vertical break, and he paired it with a curveball that showed depth and feel. Heideman controls his levers well, creating natural deception that consistently induced awkward swings from hitters.

Positional Profile: RHP/RHP
Body: 6-2, 182.2-pounds. Long-levered, high-waisted frame with projection.
Delivery: Tall and fall delivery, high front side and works in-line, controls long levers.
Arm Action: RH. Long arm action, over-the-top slot.
FB: T87, 85-87 mph. Plays with deception and life out of the hand, true four-seam action with occasional ride. T2292, 2177 average rpm.
CB: 72-74 mph. Go-to secondary offering, depth and feel. T2311, 2244 average rpm.

Positional Profile: RHP/1B
Body: 6-3, 199-pounds. High waist with projection, more room to add strength.
Delivery: Uptempo, small leg lift, tall/fall, short stride down the mound.
Arm Action: RH. Compact, quick arm action, over the top.
FB: T87, 86-87 mph. Straight out of the hand with life through the zone. T2119, 2052 average rpm.
CB: 73-74 mph. 12/6 shape, works down, tunnels well. T2299, 2209 average rpm.
CH: 78-78 mph. Maintains armspeed. T1694, 1576 average rpm.

Positional Profile: RHP/1B
Body: 6-3, 187.2-pounds.
Delivery: Medium, compact leg-lift, quick mover down the mound, works in-line with uphill shoulders.
Arm Action: RH. Long reach in the back, over the top release.
FB: T85, 83-84 mph. Life through the zone with finish. T2178, 2109 average rpm.
CB: 69-71 mph. Downer shape with depth. T2194, 2070 average rpm.

Jackson Heidemann, Harlem (IL), 2026
Positional Profile: RHP/1B
Body: 6-2, 183-pounds.
Delivery: Begins wind-up in tall position, quick when motion begins, regular leg lift, sinks into back hip, balanced follow through; ability to slide step with runners on.
Arm Action: RH. High 3/4 slot, arm drops after hand break, complete path.
FB: T85, 81-84 mph. Stays true, works through areas of zone, utilized upper-glove-side quadrant. T2228, 2125 average rpm.
CB: 71-73 mph. 12/6, sharp break, tight. T2381, 2200 average rpm.

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.

Positional Profile: RHP/1B
Body: 6-2, 177-pounds. Lean frame, long limbs, high waist.
Hit: RHH. Balanced base, simple move back, controlled stride. Flat path, direct, ball jumps, mostly pull side, back spins it. 66.9 mph bat speed with 23 G's of rotational acceleration.
Power: 89 max exit velocity, averaged 80.1 mph. 310' max distance.
Arm: RH. INF-82 mph. Full arc, high 3/4 slot, quick arm.
Defense: Steady hands, feel for the bag, shuffle to throw.
ATH: 7.70 runner in the 60. 23.30 max vertical.

RHP Jackson Heidemann (Harlem, IL, 2026) stands a long and lean 6-foot-2, 176 pounds. He repeated an up-tempo delivery with a medium circle arm swing and showed a quick arm through release getting to 84 mph with his fastball. He showed the ability to land his curveball with sharp break off of a 11/5 tilt. The sophomore rounded out his three-pitch mix with a useful change up at 75-77 mph that showcased some depth through the hitting zone.

RHP Jackson Heidemann (Harlem, IL, 2026) stands a long and lean 6-foot-2, 176 pounds. He repeated an up-tempo delivery with a medium circle arm swing and showed a quick arm through release getting to 84 mph with his fastball. He showed the ability to land his curveball with sharp break off of a 11/5 tilt. The sophomore rounded out his three-pitch mix with a useful change up at 75-77 mph that showcased some depth through the hitting zone.

Positional Profile: RHP/1B
Body: 6-3, 165-pounds. High waist, projectable.
Delivery: High leg kick, tall and fall.
Arm Action: RH. Long, stabby arm action into a over the top slot.
FB: T79, 76-79 mph. Jumps out of the hand, plays with carry in the zone. T1895, 1760 average rpm.
CB: 63-65 mph. 12/6 breaker, some feel for the zone. T1574, 1543 average rpm.
CH: 65-67 mph. Drops arm slot, with depth. T1484, 1352 average rpm.

Positional Profile: RHP/1B
Body: 6-3, 165-pounds. High waist, projectable.
Delivery: High leg kick, tall and fall.
Arm Action: RH. Long, stabby arm action into a over the top slot.
FB: T79, 76-79 mph. Jumps out of the hand, plays with carry in the zone. T1895, 1760 average rpm.
CB: 63-65 mph. 12/6 breaker, some feel for the zone. T1574, 1543 average rpm.
CH: 65-67 mph. Drops arm slot, with depth. T1484, 1352 average rpm.

Positional Profile: RHP/1B
Body: 6-3, 165-pounds. High waist, projectable.
Hits: RHH. Stock set up with relaxed hands. Minimal hand load, hands drop into an uphill path, easy effort, uses the whole field.
Power: 81 max exit velocity, averaged 73.7 MPH. 265' max distance.
Arm: RH. INF-75 mph.Compact, 3/4 slot.
Defense: Two-hand gather, shuffle step towards target.
Run: 7.93 runner in the 60.
Vizual Edge: 62.8 Edge Score

Positional Profile: RHP/1B
Body: 6-3, 165-pounds. High waist, projectable.
Hits: RHH. Stock set up with relaxed hands. Minimal hand load, hands drop into an uphill path, easy effort, uses the whole field.
Power: 81 max exit velocity, averaged 73.7 MPH. 265' max distance.
Arm: RH. INF-75 mph.Compact, 3/4 slot.
Defense: Two-hand gather, shuffle step towards target.
Run: 7.93 runner in the 60.
Vizual Edge: 62.8 Edge Score