MLB Prop Bets: New York Yankees vs Seattle Mariners (August 12, 2026)
The Seattle Mariners (56-64) face the New York Yankees (67-52) at Yankee Stadium on Wednesday at 7:05pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Bryce Miller is the probable pitcher for the Mariners, while Will Warren is the probable pitcher for the Yankees. The Yankees are favored to win at -124, while the Mariners are at +116. The total runs line is set at 8.5, with OVER at -118 and UNDER at -102.
- The Mariners (-194) have a 46-74 Run Line record this season, while the Yankees (+159) hold a record of 60-59.
- The Mariners have a 57-55-8 O/U record this season (meaning 57 games have gone over the total runs line, 55 have gone under and eight have resulted in a push). The Yankees have a 49-65-5 O/U record.
Scoring Insights
- The Mariners are averaging 3.9 runs per game this season (30th in the league). Comparatively, the Yankees are averaging +0.6 more at 4.5 runs (14th).
- In the field, the Mariners are allowing 4.0 runs per game this season (7th in the league), while the Yankees are allowing an average of 3.8 runs (2nd).
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 Mariners are at .228 (ranking 30th in the Major leagues), while the Yankees are batting .230 (28th).
Home Runs
- In terms of total home runs this season, the Yankees have hit 167 (2nd in the Major Leagues). Meanwhile, the Mariners have managed 138 (16th).
Runs Batted In
- Finally, looking at their runs batted in, the Mariners have recorded 447 RBIs to rank 30th in the MLB this season. Comparatively, the Yankees have recorded 509 RBIs to rank T16th.
Pitching Insights:
Earned Run Average
- The Yankees have an earned run average of 3.28 this season (1st in the Majors), while The Mariners have an ERA of 3.79 (8th).
Strikeouts
- Turning our attention to total strikeouts, the Mariners have recorded 1018 this season, ranking 14th in the MLB. Meanwhile, the Yankees rank T7th for total strikeouts, recording 1073.
Opponent Batting Average
- Opponents are batting an average of .224 against the Yankees this season (3rd in the Major Leagues). Comparatively, the Mariners' opponents are at .244 (16th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 26-30-64 | 17-14-31 | 9-16-33 | 24-23-51 | 2-7-13 | 0-0-0 | 4-1-5 |
| Yankees | 31-28-60 | 16-12-28 | 15-16-32 | 26-20-49 | 5-8-11 | 0-0-0 | 0-2-8 |
Lead After Three Innings
The Mariners are +110 to lead after three innings, while the Yankees are -140.
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 46-45-29 | 28-20-14 | 18-25-15 | 37-36-25 | 9-9-4 | 0-0-0 | 5-3-2 |
| Yankees | 51-35-33 | 23-14-19 | 28-21-14 | 41-27-27 | 10-8-6 | 0-0-0 | 3-2-5 |
NRFI/YRFI
The NRFI market is paying -120 and the YRFI is paying -110.
- The NRFI is 59-61 in Mariners games this season. The Yankees have a 58-61 NRFI record.
Last Time They Met
The Yankees recorded a 4-1 victory over the Mariners at Yankee Stadium yesterday. Despite being on the wrong side of that result, Randy Arozarena did what he could, hitting a home run. The Yankees have now won six straight at Yankee Stadium against the Mariners.
