MLB Prop Bets: Seattle Mariners vs Athletics (September 3, 2026)
The Athletics (54-86) face the Seattle Mariners (66-74) at T-Mobile Park on Thursday at 9:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Jack Perkins is the probable pitcher for the Athletics, while Kade Anderson is the probable pitcher for the Mariners. The Mariners are favored to win at -223, while the Athletics are at +181. The total runs line is set at 7.0, with OVER at -115 and UNDER at -105.
- The Athletics (-126) have a 64-76 Run Line record this season, while the Mariners (+104) hold a record of 56-84.
- The Athletics have a 70-65-5 O/U record this season (meaning 70 games have gone over the total runs line, 65 have gone under and five have resulted in a push). The Mariners have a 71-61-8 O/U record.
Scoring Insights
- The Athletics are averaging 4.4 runs per game this season (20th in the league). Comparatively, the Mariners are averaging only 4.0 (30th).
- In the field, the Athletics are allowing a whopping 5.8 runs per game this season (30th in the league), while the Mariners are allowing an average of 4.4 runs (T14th).
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 Athletics are at .246 (ranking 14th in the Major leagues), while the Mariners are batting .229 (29th).
Home Runs
- In terms of total home runs this season, the Mariners have hit 162 (15th in the Major Leagues). Meanwhile, the Athletics have managed 166 (11th).
Runs Batted In
- Finally, looking at their runs batted in, the Athletics have recorded 586 RBIs to rank 18th in the MLB this season. Comparatively, the Mariners have recorded 534 RBIs to rank 29th.
Pitching Insights:
Earned Run Average
- The Mariners have an earned run average of 4.18 this season (17th in the Majors), while The Athletics have an ERA of 5.45 (30th).
Strikeouts
- Turning our attention to total strikeouts, the Athletics have recorded 1178 this season, ranking T14th in the MLB. Meanwhile, the Mariners rank T14th for total strikeouts, recording 1178.
Opponent Batting Average
- Opponents are batting an average of .250 against the Mariners this season (22nd in the Major Leagues). Comparatively, the Athletics' opponents are at .269 (29th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Athletics | 29-43-68 | 17-21-31 | 12-22-37 | 8-10-17 | 21-33-51 | 0-0-0 | 1-5-4 |
| Mariners | 33-37-70 | 20-16-32 | 13-21-38 | 26-25-52 | 7-12-18 | 0-0-0 | 2-3-5 |
Lead After Three Innings
The Athletics are +154 to lead after three innings, while the Mariners are -200.
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Athletics | 50-59-31 | 28-30-11 | 22-29-20 | 11-16-8 | 39-43-23 | 0-0-0 | 3-7-0 |
| Mariners | 57-53-30 | 31-22-15 | 26-31-15 | 40-37-26 | 17-16-4 | 0-0-0 | 4-5-1 |
NRFI/YRFI
The NRFI market is paying -140 and the YRFI is paying +110.
- The NRFI is 64-76 in Athletics games this season. The Mariners have a 63-77 NRFI record.
Last Time They Met
The Mariners recorded a lopsided 9-1 victory against the Athletics at Sutter Health Park when these teams last met on May 27. The Mariners have now won four straight against the Athletics. Rob Refsnyder went yard en route to that victory, hitting a home run to go with 3 RBIs.
