

MLB Prop Bets: Seattle Mariners vs New York Yankees (March 30, 2026)
The New York Yankees (3-0) face the Seattle Mariners (2-2) at T-Mobile Park on Monday at 9:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Ryan Weathers is the probable pitcher for the Yankees, while Luis Castillo is the probable pitcher for the Mariners. The Mariners are favored to win at -115, while the Yankees are at -105. The total runs line is set at 8.0, with OVER at -102 and UNDER at -118.
- The Yankees (+150) have an 84-88 Run Line record since the beginning of last season, while the Mariners (-182) hold a record of 78-100 across the same span.
- The Yankees have a 78-87-7 O/U record since the beginning of last season (meaning 78 games have gone over the total runs line, 87 have gone under and seven have resulted in a push). The Mariners have a 98-73-7 O/U record.
Scoring Insights
- The Yankees have scored 5.2 runs per game since the beginning of last season (1st in the league). Comparatively, the Mariners have averaged 4.7 over the same span (10th).
- In the field, the Yankees have allowed 4.2 runs per game since the beginning of last season (11th in the league), while the Mariners have allowed an average of 4.3 runs over that span (16th).
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 since the beginning of last season, the Yankees are at .250 (ranking 10th in the Major leagues), while the Mariners are batting .244 (20th).
Home Runs
- In terms of total home runs since the beginning of last season, the Mariners have hit 246 (3rd in the Major Leagues). Meanwhile, the Yankees have managed 277 (1st).
Runs Batted In
- Finally, looking at their runs batted in, the Yankees have recorded 832 RBIs to rank 1st in the MLB since the beginning of last season. Comparatively, the Mariners have recorded 755 RBIs to rank 10th.
Pitching Insights:
Earned Run Average
- The Mariners have an earned run average of 3.85 since the beginning of last season (12th in the Majors), while The Yankees have an ERA of 3.84 (11th).
Strikeouts
- Turning our attention to total strikeouts, the Yankees have recorded 1467 since the beginning of last season, ranking 7th in the MLB. Meanwhile, the Mariners rank 6th for total strikeouts, recording 1473.
Opponent Batting Average
- Opponents are batting an average of .240 against the Mariners since the beginning of last season (13th in the Major Leagues). Comparatively, the Yankees' opponents are at .227 (2nd).
First Innings Moneyline
- Here are their first innings moneyline records since the beginning of last season.
| Total | Home | Road | Favorite | Underdog | Neutral | |
|---|---|---|---|---|---|---|
| Yankees | 59-29-84 | 27-16-43 | 32-13-41 | 49-24-76 | 10-5-8 | 0-0-0 |
| Mariners | 40-37-101 | 18-15-58 | 22-22-42 | 31-24-72 | 9-13-29 | 0-0-1 |
Lead After Three Innings
- Here are their records after the first three innings since the beginning of last season.
| Total | Home | Road | Favorite | Underdog | Neutral | |
|---|---|---|---|---|---|---|
| Yankees | 81-50-41 | 43-19-24 | 38-31-17 | 72-37-40 | 9-13-1 | 0-0-0 |
| Mariners | 71-58-49 | 37-23-31 | 34-34-18 | 55-35-37 | 16-23-12 | 0-1-0 |
NRFI/YRFI
The NRFI market is paying -120 and the YRFI is paying -110.
- The NRFI is 78-94 in Yankees games since the beginning of last season. The Mariners have a 92-86 NRFI record.
Last Time They Met
The Yankees recorded a 6-5 extra innings victory over the Mariners at Yankee Stadium when these teams last met on July 10, 2025. Despite being on the wrong side of that result, Jorge Polanco went yard in that matchup, hitting a home run to go with 3 RBIs. The Yankees have now won five straight at Yankee Stadium against the Mariners.

























