Orioles vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for May 15

Odds updated as of 2:11 a.m.

The Baltimore Orioles are among the MLB squads in action on Friday, up against the Washington Nationals.

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Orioles vs Nationals Game Info

• Baltimore Orioles (20-24) vs. Washington Nationals (21-23)
• Date: Friday, May 15, 2026
• Time: 6:45 p.m. ET
• Venue: Nationals Park -- Washington, District of Columbia
• Coverage: Nationals.TV and MASN

Orioles vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: BAL: (-144) | WSH: (+122)
• Spread: BAL: -1.5 (+114) | WSH: +1.5 (-137)
• Total: 9 -- Over: (-122) | Under: (+100)

Orioles vs Nationals Probable Starting Pitchers

Probable Pitchers: Shane Baz (Orioles) - 1-4, 5.48 ERA vs Zack Littell (Nationals) - 1-4, 6.94 ERA

The Orioles will give the ball to Shane Baz (1-4, 5.48 ERA), who is eyeing win No. 2 on the season, and the Nationals will turn to Zack Littell (1-4, 6.94 ERA). Baz and his team have a record of 3-5-0 against the spread when he starts. Baz's team is 2-2 this season when he starts and they are the moneyline favorite. The Nationals have gone 2-3-0 against the spread when Littell starts. The Nationals are 2-3 in Littell's five starts this season that they were the underdog on the moneyline.

Orioles vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Nationals win (51.6%)

Orioles vs Nationals Moneyline

• Looking at the moneyline for Orioles-Nationals, Baltimore is the favorite at -144, and Washington is +122 playing at home.

Orioles vs Nationals Spread

• The Nationals are +1.5 on the spread (-137 to cover), and Baltimore is +114 to cover the runline.

Orioles vs Nationals Over/Under

• An over/under of 9 has been set for Orioles-Nationals on May 15, with the over being -122 and the under +100.

Bet on Baltimore Orioles vs. Washington Nationals on FanDuel today!

Orioles vs Nationals Betting Trends

• The Orioles have been chosen as favorites in 23 games this year and have walked away with the win 12 times (52.2%) in those games.
• This season Baltimore has come away with a win three times in five chances when named as a favorite of at least -144 on the moneyline.
• The Orioles and their opponents have gone over the total this season in 26 of their 44 opportunities.
• The Orioles are 20-24-0 against the spread in their 44 games that had a posted line this season.
• The Nationals have won 47.6% of the games this season they were the underdog on the moneyline (20-22).
• Washington has gone 13-15 when it has played as a moneyline underdog with odds of +122 or longer (46.4%).
• The Nationals have played in 44 games with a set over/under, and have combined with their opponents to go over the total 28 times (28-14-2).
• The Nationals have collected a 25-19-0 record ATS this season (covering 56.8% of the time).

Orioles Player Leaders

• Taylor Ward has an OPS of .803, fueled by an OBP of .426 to go with a slugging percentage of .377. He has a .265 batting average, as well.
• Among qualified hitters in baseball, his batting average ranks 61st, his on-base percentage ranks third, and he is 106th in slugging.
• Ward has hit safely in two straight games. During his last five outings he is hitting .214 with a double and seven walks.
• Pete Alonso leads Baltimore with 36 hits. He is batting .218 this season and has 18 extra-base hits. He's also slugging .424 with an on-base percentage of .310.
• Among qualifiers, he ranks 131st in batting average, 118th in on-base percentage and 66th in slugging percentage.
• Alonso heads into this game looking to extend his two-game hit streak. During his last five outings he is hitting .158 with an RBI.
• Adley Rutschman has collected 30 base hits, an OBP of .339 and a slugging percentage of .553 this season.
• Gunnar Henderson has been key for Baltimore with 36 hits, an OBP of .253 plus a slugging percentage of .393.

Nationals Player Leaders

• C.J. Abrams has a team-best OBP (.390) and slugging percentage (.532), while pacing the Nationals in hits (45, while batting .292).
• Including all qualified hitters in MLB, he is 31st in batting average, 13th in on-base percentage and 13th in slugging percentage.
• James Wood is hitting .234 with 11 doubles, 12 home runs and 37 walks. He's slugging .515 with an on-base percentage of .382.
• Including all qualifying hitters, he ranks 107th in batting average, 21st in on-base percentage and 19th in slugging percentage.
• Daylen Lile has a .433 slugging percentage, which leads the Nationals.
• Luis Garcia is hitting .276 with eight doubles, two triples, three home runs and six walks.

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