Seattle Mariners Odds

Seattle Mariners 2023 Season

MLB Odds: San Diego Padres vs. Seattle Mariners

Below is a selection of odds for the upcoming MLB game: Updated August 15, 2023 - Odds Provided by BetMGM - Subject to Change

The Mariners finished the regular season with 90 wins and qualified for the playoff. Unfortunately for them, Houston Astros stopped them from continuing further in the AL Divisional Series.

Expectations are higher than usual since the Mariners have Julio Rodriguez, who is the reigning American League Rookie of the Year.

See all of the Mariners odds, as well their win total, championship odds, and much more.

Betting on the Seattle Mariners

Mariners Spread (Run Line)

When betting on baseball, you’ll be faced with three standard options: the moneyline, over/under and run line.

The run line is a bet on the margin of victory, like a point spread. But because baseball is low scoring, the spread will almost always be -1.5 for the favorite and +1.5 for the underdog. The payouts for each will just be adjusted based on each team’s strength.

Here’s a brief example of a run line for a hypothetical Mariners game:

• Oakland Athletics (+1.5)
• Seattle Mariners (-1.5)

As shown above, the Mariners are favored by 1.5 runs against the Athletics; the minus sign (-) indicates Seattle is the favorite, while a plus sign (+) is used to denote the underdog. Bettors who wanted to back Seattle here would be “laying” those 1.5 runs, meaning for their bets to cash the Mariners would need to win by two runs or more. Bettors who selected the Athletics +1.5 would win if Oakland won outright or kept a loss to 1 run.

The Mariners were 87-80 on run lines in 2022, covering 52.1 percent of the time – placeing them in the upper part of the league.

Mariners Moneylines

Many first time bettors are wary of run line bets, especially when riding with the hometown team. In that case, moneyline wagers are often seen as the safer way to go. A moneyline bet is a bet on who wins the game -- no run line involved.

Let’s use the same example from before to understand the moneyline better:

• Oakland Athletics +150
• Seattle Mariners -180

Just as with run lines, the minus sign (-) signifies a team is favored, while the plus sign (+) means a team is the underdog. The moneyline odds, written in American odds format here, indicate how big or small a favorite that team is, written in increments of $100. For example, to win $100 on the Mariners, a bettor would need to risk $180. On the flip side, a $100 bet on the Athletics would net $150 if they pulled the upset.

The Mariners went 92-75 in 2022, putting them in second place in the AL West and in the 9th place in the league.

Odds can differ from sportsbook to sportsbook, so always make sure you shop for the best line with The Action Network app.

Mariners Over/Unders

Betting on a team to win or cover a run line isn’t the only type of wager allowed on MLB games. Almost all sportsbooks will offer a total on the game, also known as an over/under. This bet is not on the winner of the contest, but on the number of runs the two teams will combine to score; sportsbooks hang a number, and bettors can wager either over or under that total.

If the number for our hypothetical Mariners-A’s matchup was 8 runs, over bettors would require 9 points or more to cash their tickets, while those who bet the under would need 7 or fewer runs. If the two teams scored exactly 8 runs between them, that bet would push and all wagers would be refunded.

Mariners totals in 2022 were in the middle of the table when betting the over, hitting at a 77-82-8 clip.

Mariners Props

Some bettors find more entertainment and success betting on more specific outcomes than the result of the game. Prop bets cover a wide market of wagers on player stats, discrete in-game events, and any style of yes/no question. Many props are bets on specific players and their performance, such as betting Jarred Kelenic over 1.5 hits on a given night, or betting that Robbie Ray will strike out over 9.5 batters. Some props can be shorter term, such as betting on the number of runs scored in the first five innings or who will hit a home run. Offerings tend to vary depending on the sportsbook, so use our sportsbook reviews to find the best bet for you.

Mariners Futures

Expectations are high right now in Seattle, so bettors still have to shop for the best line to get good odds on Mariners futures bets. Futures are bets that focus on long term outcomes, like the Mariners to win the AL West, win the American League Pennant, win the World Series, or even individual awards like winning league MVP.

How to Bet on the Seattle Mariners

Online sports betting is not currently legal in the state of Washington, but it is expected to become available in 2023. Bettors are currently able to bet in-person at a variety of tribal casinos throughout the state. Stay up to date on The Action Network's Washington state page for updates regarding sports betting legislation.

If you’re able to get to a state where online betting is legal, The Action Network has partnerships with several sportsbooks that give you exclusive access to great promotions if you are located within the state.

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