The Wisconsin Scout Blog provides insider information and scouting notes from the Prep Baseball Scouting Staff during the season. This running blog will feature information on underclass prospects, unsigned seniors, draft prospects, and anything else that is notable. We will provide a wide range of information, including player evaluations, velocities, pop times, home to first times, and more. Simply put, the Wisconsin Scout Blog is loaded with information …

FRIDAY, APRIL 5TH

BROOKFIELD CENTRAL vs. GERMANTOWN

By: Josh Fields
Area Scout, Data Coordinator

Colton Semmelmann, LHP, Brookfield Central, 2026
Uncommitted, the 6-foot-1, 176-pound left-hander is one of the top pitchers in the state’s class of 2026. An athletic mover on the mound that has shown the ability to repeat his delivery across an extended outing which has helped his ability to command his pitches. His fastball got up to 87 mph early in his outing and sat 84-86 throughout. Semmelmann was able to locate his fastball to both his arm-side and glove-side in this look and earned swings-and-misses in the zone. Semmelmann was confident in his low-70s curveball that is another swing-and-miss offering for him and showed feel to throw to both sides of the plate against both handed batters. Rounding off his pitch mix Semmelmann showed a low-80s changeup that he threw to both handed batters, flashing like a potential weapon against any hitter once he gains more feel of the pitch. A rising arm in the class of ‘26 Semmelmann will be one to follow across his prep career as he matures both physically and on the mound.

Vincent Bitter, RHP, Brookfield Central, 2026
Uncommitted, the 6-foot-1, 207-pound right-hander was the first arm out of the ‘pen for the Lancers on Friday. Showing a lively two pitch mix across his 1.1 innings on the mound, Bitter struggled to control his pitches in this outing, however his stuff was impressive throughout. Bitter was 85-87 mph with his fastball, able to run it up to 90 on his hardest bullet and the pitch earned swings-and-misses in and out of the zone. Bitter also flashed a sharp low-70s slider that projects as a potential out pitch moving forward. Bitter has the arm talent to be one of the top pitchers in his class moving forward and will be a name-to-know moving forward.

Carter Gordon, RHP, Germantown, 2027
Uncommitted, standing in at 6-foot-3, 250-pounds the imposing freshman took the mound for an inning in relief where he was efficient and struck out two batters. Despite his size, Gordon is an athlete on the mound with impressive movement skills. One of the top arms in his class and in the region, Gordon was able to run his fastball up to 90 mph sitting 87-89 in his inning. Gordon has advanced and still developing command of his fastball, showing some ability to spot up his fastball to both sides of the plate and keeping his misses away from the heart of the plate. While he didn’t need it in this outing Gordon showed a tight breaking slider in the low-80s during warmups. Gordon continues to impress in each outing in front of our staff as he has an advanced set of tools across the board for someone his age. Another underclassmen in the Badger State to monitor going forward.

Nicholas Heisl, RHP, Germantown, 2024
Wisconsin-Milwaukee commit, standing at 6-foot, 150-pounds Heisl has one of the more unique pitch arsenals in the state. Heisl pitches backwards and throws a majority of offspeed pitches, his fastball sits in the low-80s and topped out at 84 mph in this look. Mainly relied on his two different breaking balls that both have swing-and-miss action and both had multiple whiffs on the day, a 70-73 mph curveball that played with a sharp break from an 11/5 shape, and a slider that sat at 74-75 that played sharp with sweeping action. Heisl’s innate feel for spin makes him one of the more intriguing arms in the state's senior class and will be one our staff monitors as he heads into college this fall.

SATURDAY, APRIL 6TH

MILTON vs. VERONA

By: Josh Fields
Area Scout, Data Coordinator

Jack DeTienne, RHP, Verona, 2024
Xavier commit, currently ranked No. 2 in Wisconsin’s class of ‘24 and No. 93 nationally. Projectable 6-foot-3, 177-pound frame with more room to fill out as he matures. In an outing heavily attended by over a dozen pro scouts, DeTienne tossed three no-hit innings striking out eight batters with scattered command of his fastball. Even with the command issues in this look, DeTienne was still able to generate a number of swings-and-misses on the fastball alone, running it up to 94 mph and sitting 90-94 throughout with carry through the zone. Looking forward, his fastball projects to get better as he matures physically as it already is one of the better pitches in the region on stuff alone. DeTienne didn’t throw many offspeed pitches in this look but he did show a low-to-mid-80s breaking ball early. One of the top arms in the nation, DeTienne has a history of performing on the national stage and will be one to follow closely heading into the Draft this summer.

Broden Jackson, RHP, Milton, 2024
Madison JC commit, currently ranked No. 96 in the state’s class of ‘24. Standing at a physically built 6-foot-2, 215-pounds with strength throughout his frame. Across his two inning start where he was tagged for four runs, Jackson showed an improved arsenal. Jackson has had notable arm strength when he’s pitched in front of our staff, this look was no different. Now reaching 91 mph sitting 88-91 early, 85-87 in the third with his fastball that played with late life and finish to the pitch. Jackson showed improved feel for his mid-70s breaking ball in this look, flashing sharp downward break generating whiffs and chases out of the zone. Jackson also showed a low-to-mid-80s changeup that looks to have improved as well.

NEW BERLIN EISENHOWER VS GREENDALE

By: Isaiah Glidden
Area Scout, Content

Sam Hirthe, RHP, New Berlin Eisenhower, 2025
Uncommitted. Long 6-foot, 167-pound frame with room to fill out. Got the start in game two of the double-header against Greendale. Out of an easy and athletic delivery, Hirth ran his fastball up to 87 mph in his outing, while sitting 84-86 mph throughout. He went to a sweeping breaking ball in the mid-70s pretty often, showing quality feel to throw it in the zone for strikes and out of it for swing-and-miss. While he didn’t go to it much, he also does possess a high-70s changeup that has shown out-pitch potential in our previous looks, too. He would finish his outing with six strikeouts across his 4.1 inning of work, and scattered just two hits while walking just one. After hitting an 89 mph high at the South Milwaukee ID just a couple of months ago, Hirthe continued to impress during his first start of the season and is certainly an uncommitted name-to-know in the state’s junior class.

Cal Schneider, LHP, New Berlin Eisenhower, 2027
Uncommitted. Ultra-lean and long 6-foot, 139 pounds with a high-waist. On the mound, Schneider is a simple and clean mover, not using much effort to deliver his productive three-pitch mix. Schneider ran his fastball up to 80 mph, playing with some easy life and ride through the zone. Off that, he consistently flipped in a big 1/7 breaking ball for first pitch strikes, and later in the count he showed the ability to throw it out of the zone for whiffs. Rounding out his repotirie was a changeup in the high-60s with some heavy fade to his arm-side. Schneider's "pitchability" is well above his years and there is still plenty of upside in his thin frame, making him an intriuging arm to follow over the next four years.

Caleb Johns, CIF, New Berlin Eisenhower, 2026
Uncommitted. Currently ranked No. 4 in the state. Sturdy 6-foot-1, 180 pounds with a strong lower half. Impressed with the bat on Saturday. From the left side, Johns sets up with rhythm before utilizing a simple leg lift to deliver that barrel with quick hands. He showed some pop to the opposite field, as he smacked a deep double to the wall that brought home two runs in New Berlin Eisenhower’s win. Throughout their two games of the day, he showed a quality approach as he worked deep into the count in a majority of his at-bats. Despite being an underclassmen, he was one of the vocal leaders on this team, and he exudes confidence while on the diamond, something that is certainly noteworthy.

Jack Bauer, INF, Greendale, 2024
Madison JC commit. Currently ranked No. 77 in the state. Athletic and strong 5-foot-9, 170 pounds. Bauer was a bright spot for Greendale in their two games of the day. At the plate, Bauer swings a quick-twitch and dynamic right-handed bat, with quick hands that produces some easy bat speed. He tallied three hits on the day, one of which was a deep home run over the left-field fence in game one. Defensively, his twitchy athleticism was on full display as he was able to cover a ton of ground at shortstop to make a number of tough plays and showed off plenty of arm strength to stick on the left side of the infield at the next-level, too.

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