Performance of the Week: South Lyon East's Mason Crosby
October 30, 2026
Mason Crosby ♦ South Lyon East
Senior ♦ Tennis
Crosby completed a perfect season last weekend 30-0, with his final four wins at the Lower Peninsula Division 2 Finals earning him the championship at No. 1 singles. Top-seeded in the bracket, he clinched with a 6-1, 6-2 victory over Birmingham Seaholm’s second-seeded Carter Griffith.
This was Crosby’s third appearance in a championship match at the Finals; he finished No. 2 singles runner-up as a freshman and No. 1 singles runner-up as a junior. Crosby’s only losses those seasons came in those title-deciding matches, and his sophomore-year Finals ended with a first-round defeat against Griffith. Crosby finished with a four-year singles record of 123-5 – with those wins ranking 13th on the MHSAA career list – and claimed 19 victories this fall by 6-0, 6-0 scores. He also plays basketball for South Lyon East, and he’s hoping to continue his tennis career at the collegiate level. His brother Cameron plays at Kalamazoo College.
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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.
Past 2026-27 honorees
Oct. 23: Addilyn Duflo, Bath golf - Read
Oct. 16: Levi Lengemann, Imlay City tennis - Read
Oct. 9: Olivia Buford, Sterling Heights Stevenson swimming - Read
Oct. 2: Sophia McCollum, Muskegon Reeths-Puffer golf - Read
Sept. 25: Jenna Middleton, Kingsley volleyball - Read
Sept. 18: Caden Livermore, Grandville cross country - Read
(Action photo by High School Sports Scene.)
Performance of the Week: Flint Kearsley's Delaney Vanier
January 15, 2026
Delaney Vanier ♦ Flint Kearsley
Senior ♦ Bowling
The Hornets senior standout rolled games of 204 and 193 as Kearsley came back from a 10-0 deficit to defeat reigning Division 2 champion Swartz Creek in a roll-off. The matchup actually pitted the last two Division 2 team title winners; Kearsley was the champion in 2024 before being stopped in the semifinals last season.
Vanier's series of 397 was Kearsley's highest against Swartz Creek and especially significant after the Dragons opened the match by sweeping the two Baker games. Vanier also was a Singles Finals qualifier last season and will continue her bowling career after graduation at Rochester Christian, where she intends to study nursing.
@mhsaasports 🎳POW: Delaney Vanier #flintkearsley #bowling #highschoolsports #performanceoftheweek #MHSAA ♬ Bright and fun upbeat pops, Kids, Animals, Pets, Fun, Cute, Happy, Playful, Upbeat(1465232) - SAKUMAMATATA
@mhsaasports 🎳POW: Delaney Vanier #funfacts #tiktalk #performanceoftheweek #highschoolsports #MHSAA ♬ Girly and cute synth pop - SAKUMAMATATA
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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
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 courtesy of the Vanier family.)