A full-game MLB run line has action once the game reaches 9 innings, or 8.5 if the home team is ahead, and extra innings always count. Checking a ticket against that rule takes about two minutes. The one thing to know first is that MLB calling a game official does not mean your book will grade the bet, and that is where most of the confusion starts.

What you need

  • The ticket itself

    You need the exact market name as it appears on the bet slip, not what you remember betting.

  • Your book's baseball house rules page

    Wording varies by operator, so the house rules for the book holding the bet are the ones that decide it.

  • The box score with the inning the game ended in

    Note whether it ended after a top half or a bottom half, and who was leading at that point.

Checking the ticket, step by step

  1. Read the market header on the slip

    If it says Run Line with no qualifier, it is a full-game bet and everything below applies. If it says First 5 Innings or names a single inning, it settles on its own rules and extra innings are excluded by design, as FanDuel's MLB guide states. Those partial markets work differently; the F5 run line has its own completion threshold.

  2. Confirm the game started on its scheduled date and venue

    A game postponed before first pitch is no action and your stake comes back. BetUS's house rules require regular season games to be played on the scheduled date at the listed venue. A rainout rescheduled for next week is a new game, not your bet.

  3. Count the innings completed

    You are looking for 9 full innings, or 8.5 if the home team led going into the bottom of the ninth. If the box score shows that, the bet has action. If it shows less, the bet is void regardless of the score. Skybook grades games it lists as seven-inning doubleheader games at 7 innings (6.5 if the home team is ahead).

  4. Apply the 1.5 runs to the final score

    If the game went to extras, the final score is still the one that counts. The -1.5 side needs a win by two or more; the +1.5 side covers with a one-run loss or an outright win. An eleven-inning 4-3 game is a loss for the favorite at -1.5, not a void.

  5. Check whether a suspended game was resumed

    BetUS says suspended games generally must resume and finish to count. Skybook sets a hard deadline: the game must resume and finish within 36 hours of its original start time or bets are voided. Playoff games are different at BetUS, where wagers keep action until the game is completed regardless of interruptions.

A rain-shortened game

Say you bet the road team -1.5. Rain arrives with the road team leading 6-1, and the umpires call the game after the top of the seventh. MLB records it as a final.

Innings completed6.5
Run line threshold9 (8.5 if home team ahead)
Threshold met?No
Score marginRoad team by 5

The bet is void and the stake is returned. The five-run lead does not matter, and neither does MLB's ruling.

If the grade doesn't match what you expected

Because the league and the book are making different decisions. [Sports Betting Dime](https://www.sportsbettingdime.com/guides/how-to/baseball-run-line-betting/) puts it bluntly: a game called in the sixth cancels the run line bet even with a ten-run lead. Your moneyline on the same game may well have been graded, since moneylines become official after 5 innings (4.5 if the home team leads). That split between the two markets is one more thing to weigh when choosing [run line or moneyline](/mlb-run-line-vs-moneyline-which-to-bet/).

No. FanDuel grades run lines, totals and props as action regardless of pitching changes, and only moneylines offer a Listed Pitcher option there. BetUS has phased out Listed Pitcher baseball bets entirely, and Skybook ended them on July 16, 2024.

There is no push on a 1.5-run line, so it is a loss for the -1.5 side. That outcome is common: one strategy writer argues the automatic runner on second makes extra-inning games skew heavily toward one-run finishes. The fair counterpoint is that a favorite can break a game open in extras against tired bullpens, but that is the exception you are hoping for, not the pattern.

FanDuel says shortened games with an undecided outcome are voided, which leaves room for a decided one to be graded. This is exactly where operator wording matters, so read the house rules for the specific book before arguing the grade.

Done, and then

You can now read any run line ticket and know whether it should be graded, voided or simply lost. The rule is simpler than its reputation: first pitch on schedule, 9 innings or 8.5 with the home side ahead, and extras count all the way to the last out. Knowing when a run line counts is the first step; deciding when it is the right bet at all is the next one.

When should a run line be part of your MLB season?

The pillar walks through how moneylines, run lines and totals fit together, and when laying 1.5 runs is worth the price.

Read the MLB strategy pillar