MLB Prop Bets: Seattle Mariners vs Boston Red Sox (June 18, 2025)
The Boston Red Sox (38-37) face the Seattle Mariners (37-35) at T-Mobile Park on Wednesday at 4:10pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Garrett Crochet is the probable pitcher for the Red Sox, while Luis Castillo is the probable pitcher for the Mariners. The Red Sox are favored to win at -127, while the Mariners are at +104. The total runs line is set at 7.0, with OVER at +104 and UNDER at -127.
- The Red Sox (+147) have a 38-37 Run Line record this season, while the Mariners (-180) hold a record of 32-40.
- The Red Sox have a 34-40-1 O/U record this season (meaning 34 games have gone over the total runs line, 40 have gone under and one has resulted in a push). The Mariners have a 38-30-4 O/U record.
Scoring Insights
- The Red Sox are averaging 4.7 runs per game this season (6th in the league). Comparatively, the Mariners are averaging 4.4 (12th).
- In the field, the Red Sox are allowing 4.5 runs per game this season (22nd in the league), while the Mariners are allowing an average of 4.3 runs (19th).
Let's take a look at how these teams perform in some other key statistical areas.
Batting Insights:
Batting Average
- Looking at their batting averages this season, the Red Sox are at .250 (ranking 13th in the Major leagues), while the Mariners are batting .242 (19th).
Home Runs
- In terms of total home runs this season, the Mariners have hit 91 (8th in the Major Leagues). Meanwhile, the Red Sox have managed 90 (9th).
Runs Batted In
- Finally, looking at their runs batted in, the Red Sox have recorded 340 RBIs to rank 6th in the MLB this season. Comparatively, the Mariners have recorded 306 RBIs to rank 13th.
Pitching Insights:
Earned Run Average
- The Mariners have an earned run average of 3.88 this season (16th in the Majors), while The Red Sox have an ERA of 3.97 (20th).
Strikeouts
- Turning our attention to total strikeouts, the Red Sox have recorded 635 this season, ranking 8th in the MLB. Meanwhile, the Mariners rank T19th for total strikeouts, recording 589.
Opponent Batting Average
- Opponents are batting an average of .251 against the Mariners this season (20th in the Major Leagues). Comparatively, the Red Sox's opponents are at .249 (19th).
First Innings Moneyline
- Here are their first innings moneyline records in 2025.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Red Sox | 18-19-38 | 10-8-21 | 8-11-17 | 11-9-26 | 7-10-12 | 0-0-0 | 5-1-4 |
| Mariners | 21-15-36 | 7-7-24 | 14-8-12 | 14-11-22 | 7-4-14 | 0-0-0 | 4-2-4 |
Lead After Three Innings
The Red Sox are -141 to lead after three innings, while the Mariners are +110.
- Here are their records after the first three innings in 2025.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Red Sox | 27-27-21 | 16-12-11 | 11-15-10 | 18-15-13 | 9-12-8 | 0-0-0 | 7-2-1 |
| Mariners | 31-20-21 | 18-8-12 | 13-12-9 | 22-10-15 | 9-10-6 | 0-0-0 | 5-4-1 |
NRFI/YRFI
The NRFI market is paying -150 and the YRFI is paying +115.
- The NRFI is 34-41 in Red Sox games this season. The Mariners have a 32-40 NRFI record.
Last Time They Met
The Mariners recorded a lopsided 8-0 victory against the Red Sox at T-Mobile Park yesterday. Cal Raleigh was unstoppable in that matchup, hitting a home run, a double and recording 6 RBIs.
