Be the Referee: Swim Turn Judges

By Sam Davis
MHSAA Director of Officials

November 8, 2022

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 – Swim Turn Judges - Listen

Did you know the officials in swimming do more than make sure everyone dives in at the same time?

Each race has a turn judge who is positioned in line with the end wall. Their job is to make sure each swimmer is executing the proper stroke during his or her turn.

For example, if you are swimming the individual medley and are in the backstroke lap, you must turn while using the backstroke. You can’t go into the breaststroke while turning. If you do, the turn judge will signal to the referee by placing one hand overhead with an open palm, and then report it to the referee after the conclusion of the race.

The referee will then decide if the turn was legal or if the swimmer should be disqualified.

Previous Editions:

Oct. 25: Soccer Referee Jersey Colors - Listen
Oct. 18: Cross Country Tie-Breaker - Listen
Oct. 11: Soccer Shootouts - Listen
Oct. 11: Safety in End ZoneListen
Oct. 4: Football Overtime Penalty - Listen
Sept. 27: Kickoff Goal - Listen
Sept. 20: Soccer Timing - Listen
Sept. 13: Volleyball Replays - Listen
Sept. 6: Switching Sides - Listen
Aug. 30: Play Clock - Listen
Aug. 23: Intentional Grounding Change
- 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