Prep Baseball Report

WIAA Playoffs: Appleton Sectional Preview

By: Maddox Durst
Staff Writer

The WIAA playoffs are coming down to the wire in the Badger State, as Regional play has come to a conclusion after an eventful week. Many of the top seeds survived their first couple of rounds of action—emerging as Sectional contenders come Tuesday, June 4.

With the talent that has evolved and will be showcased on Tuesday, the Prep Baseball Wisconsin staff will be rolling out preview pieces beforehand. Check out the nine pieces that our staff has published beforehand.

+ Marshfield Sectional: Preview
+ Glendale Sectional: Preview
+ Big Foot Sectional: Preview
+ Oshkosh Sectional: Preview
+ Oconomowoc Sectional: Preview
+ Kimberly Sectional: Preview
+ Janesville Sectional: Preview
+ Middleton Sectional: Preview
+ South Milwaukee Sectional: Preview

Our series of Sectional previews wraps up with an intriguing battle in the Division 2 field between No. 20 Mosinee, No. 16 Notre Dame Academy, Kiel and Xavier. All activities will begin right away in the morning on Tuesday—presenting the resume to excite as a competitive Sectional.

MOSINEE (22-5)

Once again, the Indians find themselves in contention for the Division 2 crown, as they enter this Sectional as the No. 1 seed—looking to return to the State Tournament. They have the talent to do so after a successful regular season.

Their production starts with the prowess of RHP/INF Keagen Jirschele (2024; South Dakota State commit), who has put up elite numbers on the diamond this spring. Jirschele has been a staple in the leadoff spot for multiple years now, and has not skipped a beat in 2024. He has also been elite on the mound as a complement in this starting rotation, as Mosinee has remained in the Power 25 for the entirety of the 2024 season.

More of that has to do with their second quality arm in RHP Garrett Shupe (2024; North Dakota State), who has put up solid numbers during the regular season campaign. The right-hander just twirled a complete game shutout against Fox Valley Lutheran in a 7-0 victory, striking out six batters while only allowing three hits. Shupe and Jirschele could be the top of the rotation to push the Indians to Appleton, as the pitching staff has not allowed a run this postseason.

Garrett Shupe [4/20/24]

OF Taylor Lemanski (2024; Wisconsin-La Crosse), C Gavin Obremski (2024; Rock Valley JC), INF Cameron Ziebell (2024; Wisconsin-Stout) and CIF Brady Lokken (2025) are more of the surrounding pieces who have elevated their level of play for this unit, who will be a tough out come Tuesday.

Mosinee will take on Notre Dame Academy right away at 10:00 a.m. in a Power 25 battle.


The Tritons were tasked with dealing with some of the state’s top Division 1 competition in the Fox River Classic, as they held their own and now emerged as a contending Division 2 team in the playoffs.

It starts with RHP Avery Duncan (2024; Dallas Baptist), an electric right-hander who has garnered much attention throughout the winter and the spring as one of the top arms in not only the state, but in the region. Duncan has shown well throughout multiple looks this spring, and is primed to be a challenging assignment for opponents

Avery Duncan [5/23/24]

The rest of the pitching staff, and some key pieces in the lineup, is summarized by the work of RHP/1B Donatello Badalamenti (2024; Indian Hills CC), RHP Noah Smits (2024; Wisconsin-Stevens Point) and RHP/UTL Aaron Heyroth (2024; Wisconsin-Eau Claire), who will all be key contributors in extending the Tritons’ season on Tuesday. Each has excelled on the pitching staff this spring, in addition to providing some pop at the plate.

INF’s Christian Collins (2025) and Drew Siudzinski (2025) are a pair of bats who have provided a spark on the offensive end, which will be important for Notre Dame Academy’s potential success on Tuesday.

KIEL (22-4)

The Raiders quietly went about their business throughout the 2024 season, garnering recognition as a Bubble Team in the Power 25 after an elite start in WIAA play. Kiel rattled off 22 wins in 23 games against Wisconsin teams after going 0-3 versus out-of-state competition—priming themselves for a competitive Tuesday.

They reached the Division 3 State Tournament last season, and look to make some noise in the Division 2 field. Two-way star RHP/INF Eyan Dessellier (2024) has been a huge piece all season for the Raiders—taking over a spot in the middle of the order while eating up innings on the mound.

This team remains young though, for the most part. RHP/OF Cade Voelker (2025) is an upside junior who has garnered some attention throughout the state—hitting leadoff for Kiel during most of the season. RHP/UTL Aaron Stephany (2026) and 1B Benjamin Kienbaum (2025) make up the rest of an offense that has been elite all season—dominating its competition in the state.

After surviving a little run from Plymouth in the Regional Final, the No. 1 seed makes their way to Tuesday with one of the best resumes in the state—looking to return to Fox Cities Stadium with the help of two wins.

Kiel will look to end Xavier's run in the playoffs at 1:00 p.m. in the second semifinal matchup.

XAVIER (14-12)

The Hawks have found their rhythm throughout this playoff stretch after an up-and-down regular season, with much credit to do with the pitching staff. They did what seemed to be impossible over the past couple of years, which was to take down the juggernaut in Denmark. They defeated the Vikings in an 11-0 victory on the road, and are a dangerous team in these playoffs.

RHP Parker Bleck (2024; Wisconsin-Milwaukee) is the top pitcher on this staff, and has provided some electric appearances in front of our staff in the past. Bleck touched 89 mph last summer, and has continued to find success this spring. The imposing right-hander struck out 11 batters and worked around three hits in a complete game effort against Luxemburg-Casco, winning the game 8-0.

C Reid Hietpas (2024) has been an under-the-radar prospect for a couple of years now, and has taken off as a staple toward the top of this lineup. He is fresh off of a 2-for-4 performance against Denmark—finishing with a double and four RBIs against strong Division 2 competition. His presence both behind the dish and at the plate will be vital if the Hawks look to continue to pull off upsets in this playoff run.

Reid Hietpas [2/4/24]

OF Matthew Potter (2026) has played an integral role in Xavier’s recent success, coming off of a strong winter showing at the Madison Preseason ID. He has excelled as a role player as of late, and is joined by numerous prospects hoping to keep their season alive.

The Appleton Sectional may remain under-the-radar in the Division 2 field, yet presents competitive teams and standout athletes in all aspects of the game. At 4:00 p.m., the championship game will take place to determine who enters the State Tournament.