Per-inning run caps
- Most rec and coed divisions cap runs at 5 or 7 per half inning.
- When the cap is reached the side is retired even with fewer than three outs.
- The last scheduled inning is usually 'open' — no cap — so trailing teams can come back.
- Caps are a division setting, not a league-wide one: two divisions in the same league can differ.
Mercy (run-ahead) margins
- 20 runs after 3 complete innings.
- 15 runs after 4 complete innings.
- 10 runs after 5 complete innings (or 4½ if the home team leads).
- Tournament play often tightens these; check the bracket sheet before the first pitch.
Scoring a shortened game
The score stands as of the final legal out or capped run. Individual stats all count — a shortened game is a complete game for averages. Note the ending inning in the scorebook so standings tiebreakers based on run differential can be audited later.
How Dugout Hero handles it
Run caps and mercy margins are part of the rule set attached to each division, so the scorer sees the half inning close automatically at the cap and gets a prompt when the mercy margin is met. Standings and run differential are recalculated from those final scores instantly.
FAQ
What is the mercy rule in adult slow pitch softball?
A mercy rule (also called a run-ahead or slaughter rule) ends the game early once one team leads by a set margin after a set number of innings — commonly 20 after 3, 15 after 4, and 10 after 5.
What is a per-inning run cap?
A run cap limits how many runs a team may score in a single inning. Once the cap is reached the side is retired, regardless of outs. The final inning is usually open (uncapped).
Does the home team bat in the bottom of the inning if the mercy rule is already met?
No. If the home team is ahead by the mercy margin after the top of a qualifying inning, the game ends immediately and the bottom half is not played.