Orioles vs Nationals Prediction 5/15/26 MLB Picks Today

In this article, we will formulate an Orioles vs Nationals Prediction for this MLB matchup on Friday, May 15^th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Washington Nationals Preview

The Washington Nationals have a 21-23 record this season and are sitting in the third place of the NL East. They have a 6-13 home record and are coming off a 1-15 loss at home against the Reds.

The Nationals have a .242 batting average this season, .323 OBP and .408 Slugging percentage. Washington’s pitching staff has a 5.01 ERA and 1.44 WHIP. CJ Abrams is the team’s best hitter with a .292 batting average, also leading the team in RBI with 36. James Wood adds a team‑high 12 home runs.

Zack Littell (R) is the projected starting pitcher for the Nationals, and he has a 1-4 record, 6.94 ERA and 1.60 WHIP.

Baltimore Orioles Preview

The Baltimore Orioles have a 20-24 record this season and are sitting in the third place of the AL East. They have a 8-12 away record and are coming off a 7-0 win on the road against the Yankees.

The Orioles have a .231 batting average this season, .315 OBP and .378 Slugging percentage. Baltimore’s pitching staff has a 4.60 ERA and 1.43 WHIP. Taylor Ward is the team’s best hitter with a .265 batting average. Jeremiah Jackson leads the team in RBI with 24, and Gunnar Henderson adds a team‑high 9 home runs.

Shane Baz (R) is the projected starting pitcher for the Orioles, and he has a 1-4 record, 5.48 ERA and 1.56 WHIP.

Baltimore Orioles @ Washington Nationals Betting Trends: May 15, 2026

• Probable Starting Pitcher: Zack Littell      Record this season: 1-4      ERA: 6.94
• Home Record: 1-2
• Last 5 against Orioles: 2-2

Why the Washington Nationals will win

• The underdogs have won each of the last six games between the Orioles and Nationals.
• The Orioles have lost seven of their last eight games as favorites against NL East opponents.
• The Nationals have covered the run line in each of their last nine night games following a loss.
• The Orioles have failed to cover the run line in each of their last seven games as road favorites against NL East opponents.
• The Orioles have trailed after 5 innings in each of their last four night games.
• The Orioles have trailed after 3 innings in each of their last five games at Nationals Park.
• The Nationals have won the first inning in four of their last five games as underdogs against the Orioles.

• Probable Starting Pitcher: Shane Baz      Record this season: 1-4      ERA: 5.48
• Road Record: 0-2
• Last 5 against Nationals: –

Why the Baltimore Orioles will win

• The Nationals have lost each of their last nine games against AL East opponents.
• The road team has won each of the last four games between the Orioles and Nationals.
• The Nationals have failed to cover the run line in each of their last nine games against AL East opponents.
• The Orioles have covered the run line each of their last eight road games against teams that held a losing record.
• The Nationals have trailed after 3 innings in each of their last nine games against AL East opponents.
• The Nationals have lost the first inning in four of their last five home games against AL East opponents.
• The Nationals have trailed after 5 innings in each of their last nine games against AL East opponents.

Total Runs Facts

• Each of the Orioles’ last seven games have gone UNDER the total runs line.
• Twelve of the Nationals’ last 13 night games against AL East opponents have gone UNDER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Orioles’ last six games as road favorites.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in five of the Nationals’ last six games against American League opponents.

Washington Nationals Player Prop Facts

• CJ Abrams has hit a home run in six of the Nationals’ last 26 night games.
• Keibert Ruiz has recorded at least one hit in 10 of his last 11 appearances against AL East opponents.
• Nasim Nunez ranks T1st in the league in Steals (18) this season.

Baltimore Orioles Player Prop Facts

• Adley Rutschman has hit at least one home run in four of his last five appearances after not playing the previous day.
• Adley Rutschman has recorded two or more hits in each of his last six appearances after not playing the previous day.
• Taylor Ward ranks 4th amongst qualified players for On Base Percentage (.426) this season.

Matchup/League Facts

• The Nationals rank 1st in the league for doubles this season (83).
• The Nationals rank 30th in the league for home runs allowed this season (64).
• The Orioles rank 28th in the league for runs allowed this season (230).
• The Orioles rank 27th in the league for opponent batting average this season (.260).

Orioles vs Nationals Prediction

The Nationals are 8-1 in their last 9 meetings against the Orioles and are 5-1 in their last 6 meetings in Washington.

In this Orioles vs Nationals Prediction, the Orioles are coming as -140 road favorites. Both pitchers have been terrible with a combined 12.42 ERA and both teams are 54-32 to the over combined this season, so I expect a high-scoring affair. Washington has the second-best offense in baseball and ranks 27^th in bullpen ERA, so take the over 9 in this one.