Washington Nationals (24-29) vs. Seattle Mariners (29-23)
May 27, 2025 9:40 pm EDT
The Line: Seattle Mariners -162 / Washington Nationals 136; Over/Under: 8
(Get latest betting odds)
In this article, we will formulate a Mariners vs Nationals prediction for this MLB game on Tuesday, May 27, at T-Mobile Park in Seattle, Washington. Let’s take a look at the prediction for this MLB matchup.
Washington Nationals Betting Preview
The Washington Nationals (24-29, 11-15 Away) went through their best period of the season, during which they recorded five consecutive wins, sweeping the Orioles and Braves in the process. They lost the most recent series to the San Francisco Giants, losing two of three games. The Nats fell short 3-2 to the Giants on Sunday. Mike Soroka took the loss after allowing three runs on five hits with two strikeouts and one walk in 6.0 innings.
This year, the Nationals average 4.25 runs per game (15th in the MLB) on a .241/.309/.387 triple-slash. When it comes to pitching, the Nationals’ staff has a 5.07 ERA (26th) and 1.41 WHIP (25th). James Wood leads the Nationals with a .284 batting average, 13 home runs, and 36 RBI this season.
The projected starting pitcher for the Nationals is Mitchell Parker, who is 4-3 in ten starts this season, with a 4.39 ERA and 1.30 WHIP in 55.1 innings.
Seattle Mariners Betting Preview
The Seattle Mariners (29-23, 13-11 Home) swept the San Diego Padres and won the series against the Chicago White Sox, but lost the latest one to the Houston Astros on the road. In Sunday’s 5-3 defeat, Mitch Garver led the offense with two RBI, while Luis Castillo pitched for 6.0 innings in a no-decision, allowing three runs on nine hits with six strikeouts and one walk. Casey Legumina took the loss.
This season, the Mariners average 4.58 runs per game (10th in the MLB) on a .237/.325/.397 triple-slash. When it comes to pitching, the Mariners’ staff has a 3.69 ERA (11th) and 1.32 WHIP (20th). Cal Raleigh leads the Mariners with a .254 batting average, 17 home runs, and 35 RBI this season.
Logan Evans will take the mound for the Mariners on Tuesday. The 23-year-old right-hander has a 2-1 record in five starts this year with a 3.33 ERA and 1.44 WHIP in 27.0 innings.
Total Runs Facts
- Nine of the Mariners’ last 10 games as home favorites have gone OVER the total runs line.
- Five of the Nationals’ last six games as underdogs against American League opponents have gone OVER the total runs line.
- The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the last four games between the Nationals and Mariners at T-Mobile Park.
- The ‘Inning 1 OVER 0.5 runs’ market has hit in five of the Nationals’ last six games as underdogs.
Matchup/League Facts
- The Mariners are one of only four teams in the league to rank top 10 in both steals and home runs this season.
- The Mariners rank T26th in the league for triples this season (3).
- The Nationals rank 25th in the league for hits allowed this season (469).
- The Nationals rank 25th in the league for runs allowed this season (273).
Mariners vs Nationals Prediction
The Nationals won six of the previous ten H2H encounters, but the Nats were better in five of the last six. Although I am leaning toward the Mariners in this one, I’ll opt for the Over instead. Mitchell Parker allowed 3+ runs in each of his last five starts, surrendering 22 runs in total. Logan Evans, on the other hand, allowed seven runs in his previous three starts, and I think the Nationals can score two or three off him on Tuesday. The total is not high, so I am going with Over.
