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Wisconsin Preseason Procase: Takeaways

April 3, 2026
Wisconsin Scouting Staff

On Wednesday, March 18th, Prep Baseball Wisconsin hosted the first Wisconsin Preseason ProCase at STiKs Academy in Waukesha, WI. This event featured 11 prospects, all pitchers, and allowed our staff as well as MLB scouts the opportunity to get an in-depth look at the players in attendance.

Today, we are taking the time to highlight some of the Wisconsin products that showed well on the day, with scouting reports and videos, below.

TAKEAWAYS

+ LHP Montgomery O’Brien (Wauwatosa East, 2026) Notre Dame recruit, listed at a measured 6-foot-1, 212-pounds with proportional strength to the frame and more room to add physicality as he matures. Athletic mover with a clean and quick arm action repeating a higher 3/4 arm action with life and whip at release. The fastball sat 91-93 mph, touching 94 mph (2,223 rpm), two breaking balls the curveball sat 80-82 mph (2,364 rpm) with 14.7 inches of horizontal movement while the slider sat at 83 mph (2,278 rpm) with 6.5 inches of horizontal movement. The changeup sat 87-88 mph (1,537 rpm) with -10.8 inches of horizontal movement and feel to be located in the zone throughout the ‘pen. Rounding off his arsenal showing feel to manipulate shape on the fastball working in a 89-92 mph sinker (1,959 rpm) with 4.7 inches of induced vertical break and -17.5 inches of horizontal movement. Clean look with a seemingly improved feel to work in sync and locate multiple pitches in the zone, if the look transfers over into game O’Brien looks a legitimate draft prospect inside an already deep group of prospects inside this state.

+ RHP Damian Kosempa (Marquette University, 2026): Maryville recruit, Tossed perhaps the loudest and most impressive ‘pen of the event, standing at an athletic 6-foot-1, 193.6-pound frame with lean strength throughout. On the mound, the right-hander showed a ticked up fastball sitting 90-92 mph (2,485.0 rpm) with 15.2 inches of average induced vertical break, while his slider played at 83-84 mph (2,978 rpm) with -13.4 inches of horizontal movement. Notably, both of those average spin metrics explicitly led the event, producing a heavy, jumping heater and a late-breaking, two-plane breaking ball that serves as a potentially primary out-pitch weapon. He rounds out a premium arsenal with an 83-84 mph changeup that kills spin to 945 rpm, flashing 9.2 inches of horizontal movement and late depth at -3.4 inches of induced vertical break to tunnel beautifully off his primary mix. Always shown a knack for spin, now with improved velo and another secondary that profiles well against both-handed batters the senior put himself on the radar as a pro-follow is not this spring then throughout his collegiate career.

+ RHP Mason Schmidt (Somerset, 2026): A right-handed pitcher, the Wisconsin-Milwaukee commit boasts an athletic and strong 6-foot-4, 218.9-pound frame that will continue to add to his projectable build. On the mound, the right-hander utilizes a high leg lift with balance, driving down the rubber with closed direction before finishing well over his front side. He operates with an online, quick arm action that comes through a high-¾ slot. His fastball sat 91-92 mph (2,319 rpm) with 15.9 inches of average induced vertical break and topped at 93.0 mph, while his curveball played at 74-76 mph (2,319 rpm) with -16.4 inches of horizontal movement. Schmidt also spun a sharp 10/4 slider that sat 78-80 mph (2,577 rpm) with -16.9 inches of horizontal movement and a firm sweep. To complete his four-pitch mix, he showed feel for a changeup with late bottom that played at 82-84 mph (2,014 rpm) with 17.3 inches of horizontal movement. The frame and stuff stands out with room for future projection from the right-hander, the ability to maintain stuff and command throughout prolonged outing will likely heighten his ceiling as a potential draft prospect to follow.

+ RHP Luke Parkinson (Whitnall, 2026): Bradley recruit, possesses a strong 6-foot-3, 190-pound frame with tons of projection left as he matures into his frame. On the mound, he works with a rhythmic and athletic tempo, utilizing a high, balanced leg lift that lands while maintaining direction to the plate. The arm action works clean and athletic, releasing from an over-the-top slot, quick arm speed through release with whip and life out of the hand. His fastball sat 89-91 mph (2,298 rpm) with an event-best 19.9 inches of average induced vertical break, while his curveball played at 73-74 mph (2,555 rpm) with 12.2 inches of horizontal movement. The curveball acted as a sharp 11/5 out-pitch, and he rounded out his arsenal with an 81-83 mph (1,820 rpm) changeup that featured 16.2 inches of horizontal movement alongside advanced feel for the strike zone.

+ RHP Dylan Schreiber (Waukesha West, 2027): Purdue commit, a highly projectable 6-foot-6.6, 223.3-pounds, long levered and a wiry frame that promises plenty of future physical fill. On the mound, balanced leg lift and drives down the slope with a powerful lower half, releasing out of a low-3/4 slot with a quick arm. His fastball sat 87-90 mph (1,848 rpm) with 6.4 inches of average induced vertical break and 15.8 inches of average horizontal movement, generating late bore at an advanced velocity. His slider played at 75-77 mph (2,189 rpm) with -2.6 inches of average horizontal movement, serving as a quick, late-breaking pitch that he consistently lands for strikes. Rounding out the arsenal, his changeup played at 81-83 mph (2,159 rpm) with 15.9 inches of average horizontal movement, fading from the exact same window as the fastball to operate as a weapon against hitters on both sides of the plate.

+ RHP Liam Hagland (Germantown, 2026): South Dakota State recruit, presents an imposing 6-foot-1, 195.1-pound frame with a powerful lower half and strength throughout. Operating with tempo and balanced leg lift, he utilized a clean, powerful arm action to produce peak fastball and curveball spin rates that led the entire event. His fastball sat 90-91 mph, touching a 92 mph max (2,393 rpm), while his curveball played at 83-85 mph (2,758 rpm) with -1.6 inches of horizontal movement. He also featured a short, quick slider at 80-83 mph (2,727 rpm) with -5.3 inches of horizontal movement, and flashed a late changeup at 86-87 mph (2,086 rpm) with 14.2 inches of horizontal movement.

+ RHP Vincent Bitter (Brookfield Central, 2026): Standing at an imposing 6-foot-2, 226 pounds, the Illinois State commit features a strong and proportional build that will continue to add physicality. Operating with a rhythmic tempo, the right-hander lands with balance and a stable lead leg before firing through a clean, high three-quarter slot. His fastball sat 89-91 mph (2,241 rpm), reaching a max of 92 mph, while his slider played at 74-77 mph (2,428 rpm) with -16.7 inches of horizontal movement. Bitter also features a firm changeup that sat 81-83 mph (2,200 rpm) with 14.6 inches of horizontal movement, showing late depth to mimic a splitter below the zone. He repeats his athletic delivery consistently, utilizing his firm fastball to effectively set up a nasty secondary combination while landing all three pitches for strikes.

+ RHP Bryce Loker (Omro, 2026): South Dakota State recruit, presents an athletic, well-proportioned 6-foot-1, 164-pound frame that will continue to add physical strength. The right-hander operates with a high tuck and balance over the rubber, utilizing a super quick arm from a three-quarter slot. He demonstrates quality lead leg stability, landing slightly closed while remaining twitchy through the release. His fastball sat 88-91 mph (1,986 rpm) with 15.7 inches of average induced vertical break, while his curveball played at 74-77 mph (2,331 rpm) with -6.1 inches of horizontal movement. Thrown with fastball intent, his changeup sat 78-82 mph and displayed late fading action through the hitting zone.

+ RHP Sam Wells (Brookfield East, 2026): Wisconsin-La Crosse recruit, operates with a sturdy 6-foot-1, 204-pound frame that features good proportions and strength throughout. Though listed as a right-handed hitting corner infielder, his most potent upside is showcased on the mound. Moving with a rhythmic tempo, he repeats a balanced and fluid delivery with minimal effort. He works from a high tuck and lands with closed direction to the plate, firing a quick arm consistently through a 3/4 slot. His fastball sat 89-90 mph (2,176 rpm) with 16.3 inches of average induced vertical break, touching a max of 91 mph, while his curveball played at 78 mph (2,472 rpm) with 7.5 inches of horizontal movement. The 11/5 breaking ball flashed sharpness and late bite, and he rounded out his arsenal with an 82-83 mph changeup that showed impressive fade out of the identical fastball tunnel.

+ LHP Bryce Mischler (Kimberly, 2026): Boasting a wiry, highly projectable 6-foot-5, 174.4-pound frame with long levers, the Heartland CC commit stands out on the diamond. Operating primarily as a pitcher. On the mound, up-tempo, athletic delivery with a high leg-swing finish, getting far down the slope with excellent direction to the plate. He works from a three-quarter slot with a full, online arm swing that accelerates quickly through release. His fastball sat 84-85 mph (1,958 rpm) with 15.5 inches of average induced vertical break, while his slider played at 74-76 mph (2,198 rpm) with 4.5 inches of horizontal movement. He rounded out his deceptive, strike-throwing arsenal with an 80-82 mph (1,709 rpm) changeup that featured 13.0 inches of average induced vertical break and late fading action through the zone.

+ RHP Cail Geiger (Menomonee Falls, 2026): Valparaiso recruit, athletic, well-proportioned 5-foot-11, 191-pound prospect with loose movement and strength throughout his frame. On the mound, the right-hander operates with an up-tempo delivery, kicking out over the rubber with online direction and a medium leg swing finish that he repeats at a high level. He utilizes a full, whippy arm action from a three-quarter slot with quick arm speed to consistently attack the zone. His fastball sat 87-88 mph (2,318 rpm), topping out at 89 mph, while his curveball played at 77-80 mph (2,617 rpm) with 11.3 inches of horizontal movement. He additionally spins a short, lateral slider at 80-83 mph (2,364 rpm) with 3.8 inches of horizontal movement. Rounding out his distinct four-pitch mix, the Yale commit throws an 80-82 mph (1,138 rpm) changeup with fastball intent that generates hard, late running action and 10.2 inches of horizontal movement.

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