Some notable highlights of the 2017-18 prep sports season around the OAA, broken down by season. FALL - Farmington Hills Harrison head coach John Herrington made history during an Oct. 13 win over Berkley, as he became the all-time winningest high school football coach in the history of Michigan by achieving his 431st win, surpassing former Brother Rice head coach Al Fracassa. The only coach Harrison has had in its 48-year history, Herrington has led the Hawks to a record 13-state championships.
- The Bloomfield Hills boys tennis team avenged a runner-up finish at last year's Division 1 state tournament by winning it all this year in Midland. The Blackhawks won the title with 30 points, two points ahead of fellow OAA Red member and state runner-up Troy.
- The Troy girls cross country team won its second Division 1 state championship in school history, finishing with a meet-best total of 127 points at Michigan International Speedway, just five ahead of second-place Northville. The Colts capped off a season that also featured OAA Red and regional titles.