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First Five Innings: Betting Around the Bullpen

The F5 market settles after five innings, which removes relief pitching from the equation entirely.

· · 1 min read
Baseball equipment laid out in a dugout

A first five innings bet, often shown as F5, settles on the score after five completed innings. It exists because starting pitching is far more predictable than relief pitching, and many bettors want exposure to one without the other.

Why the bullpen is the problem

Relief usage changes nightly. A manager may have three arms unavailable after a long game, or may deploy his best reliever in the seventh rather than the ninth. None of that is visible in a season-long bullpen ranking, and it can decide a game in a single inning.

What F5 gives you

By settling early, the F5 market lets you bet the matchup you actually analysed: two starting pitchers and two lineups. It is a cleaner expression of a pitching opinion than the full-game line.

Note the draw

Because five innings can end level, many books price F5 as a three-way market including the tie, or offer a two-way version at different odds. Check which one you are betting, since the same opinion pays very differently across the two formats.

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