Be the Referee: Pitcher Arm Care
June 8, 2015
This week, MHSAA assistant director Mark Uyl explains how the 30 out-limit rule works to keep baseball pitchers' arms healthy.
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 - Pitcher Arm Care - Listen
Health and safety continues to be the major focus of the MHSAA. One rule that is geared directly to player safety is our baseball pitching limitation rule of 30 outs.
The 30-out rule limits the number of innings, or outs, that a pitcher can throw in both a given day as well as over a period within a week.
We want to make sure that high school coaches are not overusing their pitchers; that they are finding that safe area, to where arms have the ability to recover after a player has pitched a certain number of outs, allowing the body to recover so that player can have a safe and enjoyable season.
Past editions
June 1 - Bat Safety - Listen
May 25 - Balks - Listen
May 18 - Baseball Pace of Play - Listen
May 11 - Fair or Foul Ball? - Listen
May 4 - Non-Glare Helmets - Listen
April 27 - Vern L. Norris Award - Listen
March 23 - Deciding the Game - Listen
March 16 - Block/Charge Call - Listen
March 9 - Dive on the Floor - Listen
March 2 - Primary Areas - Listen
Feb. 23 - Too Much TV - Listen
Feb. 16 - Video Clip Library - Listen
Feb. 9 - Cheer Safety - Listen
Feb. 2 - Basketball PA Announcers - Listen
Jan. 26 - Wrestling Health Concerns - Listen
Jan. 19 - Basketball Physical Contact - Listen
Jan. 12 - Video Review Part 2 - Listen
Dec. 29 - Video Review Part 1 - Listen
Dec. 17 - Registration Part 2 - Listen
Dec. 10 - Registration Part 1 - Listen
Dec. 3 - Legacy Program - Listen
Nov. 26 - Sideline Management - Listen
Nov. 19 - 7-Person Mechanics - Listen
Nov. 12 - Blocking Below the Waist - Listen
Nov. 5 - Tournament Selection - Listen
Oct. 29 - Uncatchable Pass - Listen
Oct. 22 - Preparation for Officials - Listen
Oct. 15 - Automatic First Downs - Listen
Oct. 8 - Officials & Injuries - Listen
Oct. 1 - Overtime - Listen
Sept. 25 - Field Goals - Listen
Sept. 18 - Tackle Box - Listen
Sept. 11 - Pass Interference - Listen
Aug. 25 - Targeting - 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