The Swimming Conferences were realigned for the 2011–2012 school year and consist of only four levels. In 2019, a new alignment was enacted that took effect with the 2020–2021 school year. The OK Black division was abolished. The proposal was passed by a vote of 35 to 14 (33 votes or higher to pass). Notable alumni Notable Alumni who have participated athletically in the OK Conference Robert Jackson, former NFL Player Ray Bentley, former NFL Player Kirk Cousins, current NFL Player Mike Dumas, former NFL Player Paul Grasmanis, former NFL Player Kevin Haverdink, former NFL Player Gary Hogeboom, former NFL Player Mike Knuble, NHL Player Mitch Lyons, former NFL Player Jay Riemersma, former NFL Player Steve Scheffler, former NBA Player Joel Smeenge, former NFL Player Joe Staley, Current NFL player Matt Steigenga, former NBA Player John Vander Wal, former MLB Player Brent Gates, former MLB Player Loy Vaught, former NBA Player Dathan Ritzenhein, Two Time Olympian in Track and Field Brian Diemer, Bronze Medalist - 1984 Olympics in Track and Field, three time Olympian Luke Jensen, Former professional tennis player who reached a #6 world ranking in doubles. Ron Essink, Former NFL Player Drafted 1980 - Grand Valley wrestling All American. Ryan McDonald, Former NFL Player - All American and Rose Bowl starter with University of Illinois Justin Abdelkader, former NHL player. State championships Schools that have won MHSAA (unless otherwise noted) state championships while being members of OK Conference. Note: The Comstock Park Championship was determined by Individual Format versus the Team Duel Format. Note: Water polo is not recognized by the MHSAA but the OK Conference allows it full varsity status. The teams compete for the Michigan Water Polo Association (MWPA) State Championship. Membership Timeline References External links Michigan high school sports conferences High school sports conferences and leagues in the United States West Michigan