Failed at-bats

• There are 27 in a perfect game
• "Three up, three down" results
• Escape clauses, e.g.
• On the __: quarreling
• A baseball inning typically includes six of them
• Successes for a pitcher
• On the ___ (at odds)
• Inning's sextet

Wiktionary Word definitions in Wiktionary
n. (plural of out English)