The Indiana High School Athletic Association oversees high school sports in the state. The IHSAA has specific rules regarding baseball game length as well as about who may play. The IHSAA also regulates photography during high school baseball games.

Length of Games

High school baseball games last 7 innings. If a team is ahead by 10 or more runs after the fifth inning, the game may be called early. Games may also be called early on account of darkness or bad weather. If a game is called early because of these conditions, the game must be restarted if the coaches decide to continue play at a later date.

Pitching Limitation

A player may not pitch for more than 10 consecutive innings every three consecutive days. For example, if a player pitches for two innings on Monday and seven innings on Tuesday, he may only pitch one inning on Wednesday. This count is cumulative; if the pitcher in this example pitches seven innings on Tuesday and one inning on Wednesday, he may only pitch two innings on Thursday. To determine how many innings he may pitch, the pitcher adds the number of innings he pitched on the previous two days and subtracts from 10. Partial innings count towards his total.

Photography

Flash photography may not be taken during games because it can interfere with the players' ability to see the ball. Non-flash photographs may be taken; however, spectator photographs must not be used commercially (e.g. sold to newspapers) without the Indiana High School Athletic Association's written permission. Employees of the media may take still photographs to accompany articles about games if they get permission from the principal of the home team's school.