Banana Ball rule

Banana Ball designated fielder rule

Each team may name a designated fielder before the game, who can enter in any inning at any position without penalty.

The details

If the designated fielder bats or replaces a starter, the designated fielder role ends for the game.

2026 added: Pre-game designated fielder who can enter at any position in any inning. [1][2]

Season	How the rule read
2026	Each team may name a designated fielder before the game, who can enter in any inning at any position without penalty.

Sources: 2026. Summaries written by NanaBall.