Be the Referee: Play Clock Experiment
September 1, 2016
This week, MHSAA assistant director Mark Uyl explains the 40-second game clock Michigan football schools are allowed to try this fall.
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 – Play Clock Experiment - Listen
From time to time, the MHSAA receives permission from the national rules making body, the National Federation of State High School Associations, to experiment with a new rule. This fall in high school football, Michigan schools can experiment with a 40-second play clock. In this experiment, the 40-second play clock begins at the end of the previous play, giving teams consistency from week to week when the offense can next snap the ball.
With using the traditional 25-second play clock, it really depends on the referee of the game in terms of the pace on how quickly the offenses can go.
Past editions
Aug. 25: Clipping in the Free Blocking Zone - Listen
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