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United States Specialty Sports Association
USSSA
Rulebook
USSSA Slowpitch Slowball RulesOfficialLeagues
This league follows the USSSA rules for Slowpitch Softball. Please use the following link to download and read full rules.
Quick Guide
Rules USSSA has specified. Anything not listed here follows their official rulebook.
Equipment
Bats Allowed
Which bat certifications are permitted.
USSSA 240
Balls Allowed
Ball provision and approved compression/COR ratings.
Balls Provided
Game
Game Length
Maximum time limit per game.
Unlimited
Homerun Limit
Maximum home runs allowed per game.
3 per game (+1 rule)
Courtesy Fouls
Whether an extra courtesy foul is permitted.
No
Courtesy Runners
Number of courtesy runners and gender-match requirements.
1 runner, gender match required, different runner required
Extra Innings
How tied games are resolved after regulation.
International Rule
Pitching
Strike Zone
What defines a strike.
No Mat
Pitch Height
Minimum and maximum arc height requirements.
Min 3 ft (from release), Max 10 ft