Run Line Betting, Explained: What is a Run Line in Baseball?

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The run line is a form of spread betting for baseball. The run line is not intended to handicap the game to create the opportunity for an even money wager. Instead, the run line creates a new set of odds for bettors- usually flipping the favorite and the underdog.

The run line is similar to hockey’s puck line, the run line works by adding 1.5 runs to the underdog’s final score or subtracting 1.5 runs to the favorite’s, depending on which side of the bet you take. In practice, this significantly alters the game odds. To win a run line bet on the (moneyline) favorite, the team would now have to win by 2 or more runs.

Also Read: Baseball Betting Promo Codes | MLB Odds | World Series Odds | MLB MVP Odds

How To Read A Run Line

Run line betting is essentially the same thing as spread betting. The runline is the number of points you add or subtract from one team’s runs to determine the winner. Betting on the favorite and winning is called winning against the spread.

The Favorite

The favorite in a run line bet is the team that bookmakers have ruled most likely to win the game. These teams are given a negative line. For example, if a team is assigned a -3.5 line means they need to win by 3.5 runs or more for the bet to hit. If the favorite wins by the exact amount it is called a push.

The Underdog

The underdog is the team that bookmakers is expected to lose the game. This team is given a positive line. This positive number is considered a head start. If the team is given +3.5 line, it means they are given a head start of 3.5 points. They will need to win the game outright or lose by less than 3.5 runs.

Example Of A Run Line Bet

RunlineOddsMoneyline
Blue Jays-1.5+147-108
NY Yankees+1.5-160+100

As we can see, the New York Yankees are facing the Toronto Blue Jays. In the above we chart we see the moneyline odds and the run line odds. 

In this scenario, the Blue Jays are coming in as a slight favorite at -108 moneyline odds (meaning a $108 bet would net you a $100 profit), the Yankees a slight underdog at +100 ($100 bet to win a $100 profit). 

A moneyline bet is the most straightforward wager you can make. With a moneyline bet, you are simply betting on who you think will win the game. 

With a run line bet, you no longer care who wins the game (at least not completely). Instead, you care about the spread. When betting the run line, you are betting on the game + or – those 1.5 extra runs. The run line can be a great way to shake things up and give you an alternate set of odds. 

As we can see in the example above, the Blue Jays are the moneyline favorite at -108. But, when we look at the run line odds, the Blue Jays become the underdog at +147. This means that if you wagered $100 on the Blue Jays to win the puck line, you would have a potential profit of $147. 

The run line odds also flip for the Yankees. They start as the moneyline underdog at +100. When you bet the run line, though, they become the favorite at -160. This means you would need to risk $160 for a potential profit of $100. 

The odds flip when betting the run line because you are no longer betting on the simple, in-game winner. We can see that the run line is -1.5 for the Blue Jays and +1.5 for the Yankees. 

This means that to win a puck line bet on the Blue Jays, they would have to cover the spread – win the game by more than 1.5 runs. Of course, there are no half runs, so they’ll need to win by 2. This is because the run line subtracts 1.5 runs from their final score.

Likewise, if you bet the run line on the Yankees, you are hoping that they will either win outright or lose by less than 2 runs since the run line adds 2 to their final score. 

Let’s assume this is the outcome of the game:

Final ScoreRunlineWinner?
Blue Jays5-1.5
NY Yankees4+1.5X

If you bet the ruck line on the Blue Jays, did you win? 

Sadly, you didn’t. Although the Blue Jays won the game, they didn’t cover the spread of 1.5 runs. This means their “Run line Score” was really 3.5 (5 – 1.5) – less than the Yankees’ 4 runs.

Had you bet the run line on the Yankees, the result would be the opposite. Even though the Yankees lost the game, they won the run line! Their “Run line Score” would be 5.5 (4 + 1.5). 

Why Bet The Run Line

The run line’s best asset is that it offers a new set of odds and adds excitement to the game. From our example (first chart), we see the oddsmakers think the Blue Jays and Yankees game is almost a toss-up. Betting the moneyline on either one is almost an even money bet.

The run line gives you the chance to take a spicier bet. Instead of taking the favorite straight up, you can bet they’ll win by at least 2 runs. Now, you’re no longer getting -108 odds on the Blue Jays, but +147. The run line gives the confident bettor a chance to make more. 

You could also be in a position where you don’t think the underdog will necessarily win, but you’re fairly certain it’ll be a close one. In that case, betting the run line on the original underdog can be a great strategy. 

Indeed, you’re getting lower odds (+100 to -160), but you are also increasing your chances of cashing the bet. In our scenario, the Yankees are a slight underdog. However, when we add 1.5 runs to their final score, the whole dynamic changes. 

Should I Bet The Run Line?

Historically, baseball bettors have done marginally better on the moneyline than the run line. This, at least in part, is because most sportsbooks take a larger vig on the run line than the moneyline. That being said, the run line is a betting option to keep in mind, especially when you’re betting on a blowout by the favorite or a close game by the underdog.

Run Line Betting FAQs

What is a run line bet?

Run line betting is a form of spread betting. The bettor does not choose an outright winner but bets on the margin of victory or loss. The favorite has to win by more than the line and the underdog must lose by less than the line for either bet to hit.

What is an example of a run line bet?

If the sportsbook sets the run line at -1.5, that means the favorite must win by two or more runs for the bet to hit. Vise versa, if the line is set at +1.5 it means that the underdog must win outright, or lose by less than 2 runs.

How is the run line bet different than a money line bet?

The run line differs from the money line bet because the money line is betting on the outright winner, and the run line is betting on the margin of victory or loss.

What sportsbooks have run line betting?

All the major sports betting apps will have the ability to bet the run line on MLB or college baseball in states where it is legal.

Does FanDuel offer run line betting?

Yes, FanDuel is one of the major sportsbooks that offers run line betting. Sports bettors can wager on many different types of baseball bets using the FanDuel app.

About the Author
Brian Spaen

Brian Spaen

Managing Editor
Brian Spaen is the managing editor for Gaming Today. He has been a content writer and editor in various industries, including sports betting, environmental technology, and higher education. Brian is a graduate of Iowa State University and currently resides in Des Moines, Iowa.

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