Washington Nationals Odds

Washington Nationals 2026 Season Preview

The Nationals enter 2026 finally exiting the "dark ages" of their rebuild, led by the emergence of James Wood as a bona fide superstar after his 31-homer campaign last year. The lineup is now a showcase for the team's elite farm system, featuring Dylan Crews, Brady House, and Daylen Lile in everyday roles alongside shortstop CJ Abrams. To provide a veteran anchor for a very young rotation, Washington signed Miles Mikolas to slot in behind Cade Cavalli and Jake Irvin. While trade rumors continue to swirl around Abrams, the vibe in D.C. has shifted toward legitimate optimism; though they are still a year or two away from contending for the NL East, this 2026 squad is projected to be one of the most exciting "spoiler" teams in the league.

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

Betting on the Washington Nationals

Check out below the betting options:

Nationals 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 Nationals game:

• Tampa Bay Rays (+1.5) 
• Washington Nationals (-1.5)

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

Nationals 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:

• Tampa Bay Rays +150
• Washington Nationals -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 Nationals, a bettor would need to risk $180. On the flip side, a $100 bet on the Rays would net $150 if they pulled the upset.

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

Nationals 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 Nationals-Rays 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.

Nationals 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 CJ Abrams over 1.5 hits on a given night, or betting that Miles Mikolas 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 best sportsbooks reviews to find the best bet for you.

Nationals Futures

Bettors should shop for the best line to get good odds on Nationals MLB futures bets. Futures are bets that focus on long term outcomes, like the Nationals to win the NL East, win the National League Pennant, win the World Series, or even individual awards like winning league MVP.

How to Bet on the Washington Nationals

Locals can find all the ways to bet on the Nationals via Action Network's District of Columbia sports betting page.

The Action Network has partnerships with several sportsbooks that give you exclusive access to great promotions if you are located within the state. Here are a few great options to choose from:

Washington Nationals and BetMGM Sportsbook

BetMGM and the Washington Nationals have had an existing sports betting partnership since January 2021. The Nats and BetMGM have offered fans and visitors entry into exclusive promotions.

If you'd like to learn more, read our detailed BetMGM bonus code review.

Underdog Promo Code

If you're looking for a different type of action, Underdog is a great option for daily fantasy sports. Underdog is among the most simple and exciting DFS games in North America because users just have to make their picks on over/under stats. New users can sign up using our Underdog Promo Code now!

Kalshi Promo Code

The Kalshi promo code is available in most states and is a great way for users to get in on Washington Nationals action without turning to sportsbooks or DFS apps. This federally regulated exchange offers contract trading on event outcomes, including Nationals games, player props, etc.