What's My Why: Official Kari Seitz
August 19, 2026
Kari Seitz, Mill Valley (Calif.)
Kari Seitz – the closing speaker at July’s Officiate Michigan Day in Grand Rapids – was one of the top American professional soccer referees and one of the most experienced female referees in the world. She is currently the vice president of refereeing for US Soccer and formerly served as the FIFA head of refereeing.
She worked four FIFA Women's World Cup tournaments (1999, 2003, 2007, and 2011), as well as three Olympic soccer tournaments (2004, 2008, and 2012), and is the only referee – man or woman – to officiate that many of both. Kari was inducted into the National Soccer Hall of Fame in 2026 and is a graduate of Brighton High School and Michigan State University.
So I was a soccer player, played soccer since I was 6. And at some point, I joined an all-girls travel team – that never happened. This was a long time ago.
Our coach required us together, every person on the team, to take the (officiating) course. Now, I believe he didn’t know anything about soccer. He was one of those parents who was reading it from a book and just cared about his kids. So he forced us all to take the referee course, and that altered the path of my life.
“What’s My Why” is a weekly feature telling the stories of MHSAA-registered officials in their own words. If you’re an MHSAA official and would like to share your reason why, please submit a 15 to 45-second video, taken horizontally, to director of officials Sam Davis at [email protected].
What's My Why
Aug. 13: Mike Pereira, Sacramento, Calif. - Watch
Aug. 5: Dino Paganelli, Wyoming - Watch
Aug. 3: Stacy Smith, Caledonia - Watch
July 22: Jason Nickleby, Lake Elmo, Minn. - Watch
July 15: Sam Davis, Lansing - Watch
July 9: Candace Cox, Quincy - Watch
July 1: Robert Williams, Redford - Watch
June 24: Will Godfrey, Jackson - Watch
June 19: Jarrett Skorup, Midland - Watch
June 12: Brady Driver, Sturgis - Watch
June 8: Cindy Tyzo, West Bloomfield - Watch
June 3: Jeff Spedoske, DeWitt - Watch
June 1: Mike Carrier, Commerce Township - Watch
May 27: Stan Wright, Warren - Watch
May 26: Murray Rose, Zeeland - Watch
May 22: Mike VanLaan, Alto - Watch
May 18: Clint Abbott, Newaygo - Watch
Be the Referee: Illegal Substitution/Participation
By
Paige Winne
MHSAA Marketing & Social Media Coordinator
November 11, 2025
Be The Referee is a series of short messages designed to help educate people on the rules of different sports, to help them better understand the art of officiating, and to recruit officials.
Below is this week's segment – Illegal Substitution/Participation - Listen
We’re on the football field this week with 23 players.
Twenty-three is one too many; there should only be 22 on the field at once – 11 on offense, 11 on defense.
But on this play, the offense had a 12th player lined up on the field.
What’s the call?
It depends on when the penalty is spotted.
If the officials catch it before the play is run, that’s an illegal substitution and a 5-yard penalty.
But if the ball is snapped and a play is run with 12 on the field – and the 12th player is not attempting to get off the field – then it’s illegal participation and a 15-yard penalty. It’s also a 15-yard penalty if the offense uses a substitution to create a deception.
Previous 2025-26 editions
Nov. 4: Losing a Shoe - Listen
Oct. 28: Unusual Soccer Goals - Listen
Oct. 21: Field Hockey Penalty Stroke - Listen
Oct. 14: Tennis Double Hit - Listen
Oct. 7: Safety in Football - Listen
Sept. 30: Field Hockey Substitution - Listen
Sept 23: Multiple Contacts in Volleyball - Listen
Sept. 16: Soccer Penalty Kick - Listen
Sept. 9: Forward Fumble - Listen
Sept. 2: Field Hockey Basics - Listen
Aug. 26: Golf Ball Bounces Out - Listen