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. 

Follow the MHSAA on TikTok.

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: Blanchard Montabella's Brady Kieff

November 20, 2025

Brady Kieff headshotBrady Kieff ♦ Blanchard Montabella
Senior ♦ Football

Kieff ran 13 times for 86 yards and three touchdowns – including the game-winner with 1:04 to play – as Montabella came back from a 20-point deficit to defeat Norway 32-28 in an 8-Player Division 1 Semifinal. The Mustangs (11-1) have won their first Regional championship and set a record for wins this season, and next will face Martin on Saturday in the Division 1 Final at Superior Dome at Northern Michigan University.

A 5-foot-10, 160-pound running back, Kieff missed all of his junior season with an injury – but he has stormed back as a senior leading Montabella in rushing with 1,561 yards – 8.4 per carry – and 19 touchdowns. Kieff also plays baseball and plans to attend Mid Michigan College immediately after high school and then Lake Superior State University to study conservation, law and biology as he hopes to eventually work for the Michigan Department of Natural Resources.

@mhsaasports 🏈POW: Brady Kieff #football #blanchardmontabella #highschoolsports #performanceoftheweek #MHSAA ♬ Bright and fun upbeat pops, Kids, Animals, Pets, Fun, Cute, Happy, Playful, Upbeat(1465232) - SAKUMAMATATA

@mhsaasports 🏈POW: Brady Kieff #funfacts #tiktalk #performanceoftheweek #highschoolsports #MHSAA ♬ Girly and cute synth pop - SAKUMAMATATA

Follow the MHSAA on TikTok.

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 2025-26 honorees

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 Photos by Anna Jensen.)