Performance of the Week: Ravenna's Emily Postema

April 24, 2026

Emily Postema headshotEmily Postema ♦ Ravenna
Senior ♦ Softball

Coming off a Friday night sweep of Division 2 No. 5 Wayland, Ravenna took on three of the most highly-regarded Division 1 teams in the state Saturday at the Grand Haven Invitational – and downed them all to win the tournament, with major contributions from Postema, a returning all-state honorable mention catcher and one of two seniors helping pace the Bulldogs as they pursue a repeat trip to Finals weekend.

Postema was 2-for-2 during a 10-0 win over Division 1 honorable mention Traverse City Central, drove in the game-winning run in a 4-3 victory over honorable mention Midland Dow and also was 2-for-2 with a double in an 11-0 win over the No. 7 Buccaneers. Ravenna is 15-0 and ranked No. 2 in this week’s coaches poll coming off last season’s trip to the Division 3 Semifinals. Postema also was the starting catcher when Ravenna reached the Semifinals her freshman season, and she was a four-year varsity basketball player as well and earned all-league and all-area recognition this winter. She’ll continue her academic and softball careers at Cornerstone University, where she’s planning to study exercise science with a specialty in cardiac rehabilitation.

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MHSAA.com's "Performance of the Week" features are powered by MI Student Aid, a division within the Department of Lifelong Education, Advancement, and Potential (MiLEAP). MI Student Aid encourages students to pursue postsecondary education by providing access to student financial resources and information. MI Student Aid administers the state’s 529 college savings programs (MET/MESP), as well as scholarship and grant programs that help make college Accessible, Affordable and Attainable for you. Connect with MI Student Aid at www.michigan.gov/mistudentaid and find more information on Facebook and X @mistudentaid.

Previous 2025-26 honorees

April 16: Katie Berkshire, Gaylord track - Report
March 26:
Kayla Hairston, Goodrich basketball - Report
March 19:
Liam Smith, Otsego swimming - Report
March 12:
Jack Sayen, Houghton hockey - Report
March 5:
Devin Patrick, St. Clair Shores Lake Shore - Report
Feb. 26: 
Madison Nieuwenhuis, Plainwell wrestling - Report
Feb. 20: Sophie Ramey, Allen Park competitive cheer - Report
Feb. 13:
Cam Ryans, Grand Rapids Northview basketball - Report
Feb. 6:
Melanie Kolnitys, Midland Dow basketball - Report
Jan. 29:
Stella Musialowski, Huron Valley United gymnastics - Report
Jan. 22:
Baylor Perkins, Grand Blanc swimming - Report
Jan. 15:
Delaney Vanier, Flint Kearsley bowling - Report
Jan. 8:
Stevie Hall, Detroit Cass Tech basketball - Report
Dec. 18:
Ethan Martha, Ishpeming Westwood basketball - Report
Dec. 11:
Louis Smith, Three Rivers wrestling - Report
Dec. 4:
Traverse Moore, DeWitt football - Report
Nov. 28:
Elizabeth Eichbrecht, West Bloomfield swimming - Report
Nov. 20:
Brady Kieff, Blanchard Montabella football - Report
Nov. 13:
Ella Laupp, Battle Creek Harper Creek swimming - Report
Nov. 7:
Hunter Eaton, Charlevoix cross country - Report
Oct. 31:
Stephen Gollapalli, Lansing Christian tennis - Report
Oct. 23:
Talya Schreiber, Pickford cross country - Report
Oct. 16:
Avery Manning, Dexter golf - Report
Oct. 9:
Brady Van Laecke, Hudsonville football - Report 
Oct. 2:
Sarah Giroux, Flat Rock volleyball - Report
Sept. 25:
Sam Schumacher, Portage Central tennis - Report
Sept. 18:
Kaylee Mitzel, Saline field hockey - Report
Sept. 11:
Natasza Dudek, Ann Arbor Pioneer cross country - Report
Sept. 4:
Kate Posey, Big Rapids golf - Report

(Photos provided by the Postema family.)

Performance of the Week: Lansing Sexton's Keyshawn Summerville

March 13, 2025

Keyshawn Summerville headshotKeyshawn Summerville ♦ Lansing Sexton
Junior ♦ Basketball

The 5-foot-11 guard drained a buzzer-beating 3-pointer from his team’s side of halfcourt to give Sexton a 73-71 win over Chelsea in their Division 2 Regional Final. He finished with 35 points total, and the Regional title was Sexton’s first since 2012. The J-Dubbs had watched a 16-point fourth-quarter lead turn into a one-point deficit with 2.2 seconds to play, setting up Summerville’s unforgettable shot.

He averaged 19.2 points and 3.6 assists per game this season and served as a team captain as Sexton finished 19-6 and second in the Capital Area Activities Conference White. The J-Dubbs’ season ended in Tuesday’s Quarterfinal with a loss to Romulus Summit Academy North.

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@mhsaasports 🏀POW: Keyshawn Summerville #bbqsauce #chickfila #strangerthings #kyrieirving #nightowl #part2 #performanceoftheweek #mistudentaid #fyp #MHSAA ♬ Monkeys Spinning Monkeys - Kevin MacLeod & Kevin The Monkey

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MHSAA.com's "Performance of the Week" features are powered by MI Student Aid, a division within the Department of Lifelong Education, Advancement, and Potential (MiLEAP). MI Student Aid encourages students to pursue postsecondary education by providing access to student financial resources and information. MI Student Aid administers the state’s 529 college savings programs (MET/MESP), as well as scholarship and grant programs that help make college Accessible, Affordable and Attainable for you. Connect with MI Student Aid at www.michigan.gov/mistudentaid and find more information on Facebook and Twitter @mistudentaid.

Previous 2024-25 honorees

March 6: Maggie Buurma, Fowlerville wrestling - Report
Feb. 28:
Maren Studt, Pontiac Notre Dame Prep skiing - Report
Feb. 21:
Olive Krueger, Marquette swimming - Report
Feb. 14:
Hunter Lemmon, Fraser swimming - Report
Feb. 7:
Aubrey Hillard, Rochester competitive cheer - Report
Jan. 31:
Wyatt Spalo, Reed City wrestling - Report
Jan. 24:
Olivia Flynn, Harbor Springs basketball - Report
Jan. 17:
Levi Rozema, Holland Christian swimming - Report
Jan. 10:
McRecco McFadden, Burton Bentley basketball - Report
Dec. 18:
Nash Leonard, Bay City Western hockey - Report
Dec. 11:
Blake Cosby, Dundee wrestling - Report
Dec. 4:
Keaton Hendricks, Zeeland West football - Report
Nov. 29:
Kate Simon, East Grand Rapids swimming - Report
Nov. 22:
Ella Kokaly, Essexville Garber volleyball - Report
Nov. 15:
Caroline Bryan, Grosse Pointe South swimming - Report
Nov. 8:
Kaylie Livingston, Whitmore Lake cross country - Report
Oct. 25:
Oliver Caldwell, Grand Rapids West Catholic tennis - Report
Oct. 18:
Alex Graham, Detroit Cass Tech football - Report
Oct. 11:
Victoria Garces, Midland Dow cross country - Report
Oct. 4:
Asher Clark, Bay City John Glenn soccer - Report
Sept. 26:
Campbell Flynn, Farmington Hills Mercy volleyball - Report
Sept. 19:
TJ Hansen, Freeland cross country - Report
Sept. 12:
Jordan Peters, Grayling soccer - Report
Sept. 6:
Gabe Litzner, Sault Ste. Marie cross country - Report
Aug. 30:
Grace Slocum, Traverse City St. Francis golf - Report

(Photos courtesy of the Lansing Sexton athletic department.)