A wager on the money line is official after 5 innings of play, unless the home team is leading after 4.5 innings.  For a wager on a total or run line to have action, the game must go 9 innings (8.5 if the home team is ahead).  Please see the information below from our site:

Minimum time (length of event) needed for action

  1. The result of a game is official after 5 innings of play unless the home team is leading after 4.5 innings. When wagering on either runlines, total runs (over/under) or team totals (over/under) the game must go 9 innings (8.5 if the home team is ahead) to have action.
  2. In the case that a Run Ahead or Mercy Rule is invoked, games will be considered to be complete. Games wagers on runlines, totals, team totals and money line will have action.
  3. First half MLB wagers on Money Line and Spread must go 5 innings for action, or 4.5 innings if a game is ended early and called official with the home team declared the winner.
  4. If a game does not go a full five innings, all first-half wagers on the total will have no action.
  5. When pitchers are offered for the game, all first-half wagers (5 innings) must list both pitchers. If either listed pitcher does not start, wagers on the first half (5 innings) will have no action.