Be the Referee: Fair or Foul Ball?

May 14, 2015

This week, MHSAA assistant director Mark Uyl explains how baselines come into play when deciding if a batted ball is fair or foul in baseball and softball.

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 - Fair or Foul Ball? - Listen

Today’s segment is going to start with a quick “You Make The Call” question.

Baseball batter up at bat hits a line drive directly back toward the pitcher’s mound. The ball hits off the pitching rubber or the pitching plate, and rebounds directly into the first base dugout. 

Fair or Foul Ball?

Baseball and Softball are unique in that these are two sports where the lines are actually considered to be in play. A ball hitting the chalk line in Baseball or Softball is a Fair Ball, to where in a basketball game, that player would be considered out of bounds.

Now back to our question – that would be considered a Foul Ball because the ball never settled or passed first base or third base in fair territory.

Past editions
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