Performance of the Week: South Lyon East's Mason Crosby

October 30, 2026

Mason Crosby headshot 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: Grand Haven's Seth Norder

October 13, 2023

Seth NorderSeth Norder ♦ Grand Haven
Senior ♦ Cross Country

Norder has run among the state’s elite over the last three seasons, finishing as the runner-up at the Lower Peninsula Division 1 Final the last two years – and last fall by only 1.63 seconds. He likely became the runner to chase at Michigan International Speedway next month by winning Saturday’s Division 1 race at the prestigious Portage Invitational with a time of 14:57.3, which was more than nine seconds faster than the rest of the star-studded field.

That field included the reigning LPD2 champion, Chelsea’s Connell Alford (who finished third), the only other Michigan racer to clear 15 minutes this season in Freeland’s TJ Hansen (who placed fourth), and the reigning Ohio Division 1 runner-up in Samuel Ricchiuti of Dublin Jerome, who was second at Portage. Grand Haven as a team finished second to only top-ranked Brighton after entering the race ranked No. 3 in LPD1. Norder, who will continue his running career next year at Michigan State, also is the reigning LPD1 Finals track champion in the 3,200 meters, and he’s broken nine minutes in that race with a personal best of 8:46.33.

@mhsaasports 🏃POW:Seth Norder #crosscountry #grandhaven #letsgo #running #part1 #highschoolsports #tiktalk #interview #performanceoftheweek #mistudentaid #fyp #MHSAA ♬ original sound - MHSAA

@mhsaasports 🏃POW: Seth Norder #tiktalk #questiontime #part2 #stafford #theoffice #Arbys #milkshake #emoji #performanceoftheweek #mistudentaid #fyp #MHSAA ♬ original sound - MHSAA

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MHSAA.com's "Performance of the Week" features are powered by MI Student Aid, a part of the Office of Postsecondary Financial Planning located within the Michigan Department of Treasury. 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.

Past 2023-24 Honorees

Oct. 5: Paige Anderson, Muskegon Reeths-Puffer golf - Report
Sept. 29:
MacKenzie Bisballe, Lake City volleyball - Report
Sept. 22:
Jhace Massey, Gladwin football - Report
Sept. 15:
Kaylee Draper, Sturgis swimming - Report
Sept. 8:
Owen Jackson, Traverse City St. Francis tennis - Report
Sept. 1:
Rachel Forsyth, Ann Arbor Pioneer cross country - Report

(Photos courtesy of the Grand Haven athletic department.)