MLB Prop Bets: Miami Marlins vs Seattle Mariners (July 8, 2026)
The Seattle Mariners (47-45) face the Miami Marlins (50-42) at LoanDepot Park on Wednesday at 6:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. George Kirby is the probable pitcher for the Mariners, while Tyler Phillips is the probable pitcher for the Marlins. The Mariners are favored to win at -126, while the Marlins are at +105. The total runs line is set at 9.0, with OVER at +100 and UNDER at -120.
- The Mariners (+128) have a 40-52 Run Line record this season, while the Marlins (-155) hold a record of 48-44.
- The Mariners have a 44-44-4 O/U record this season (meaning 44 games have gone over the total runs line, 44 have gone under and four have resulted in a push). The Marlins have a 50-40-2 O/U record.
Scoring Insights
- The Mariners are averaging 4.1 runs per game this season (27th in the league). Comparatively, the Marlins are averaging +0.5 more at 4.6 runs (11th).
- In the field, the Mariners are allowing only 3.8 runs per game this season (3rd in the league), while the Marlins are allowing an average of 4.3 runs (11th).
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 .231 (ranking 27th in the Major leagues), while the Marlins are batting .254 (7th).
Home Runs
- In terms of total home runs this season, the Marlins have hit 93 (T23rd in the Major Leagues). Meanwhile, the Mariners have managed 110 (12th).
Runs Batted In
- Finally, looking at their runs batted in, the Mariners have recorded 364 RBIs to rank T22nd in the MLB this season. Comparatively, the Marlins have recorded 408 RBIs to rank 12th.
Pitching Insights:
Earned Run Average
- The Marlins have an earned run average of 4.08 this season (11th in the Majors), while The Mariners have an ERA of 3.55 (4th).
Strikeouts
- Turning our attention to total strikeouts, the Mariners have recorded 795 this season, ranking 10th in the MLB. Meanwhile, the Marlins rank 13th for total strikeouts, recording 771.
Opponent Batting Average
- Opponents are batting an average of .229 against the Marlins this season (4th in the Major Leagues). Comparatively, the Mariners' opponents are at .237 (8th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 22-20-50 | 13-11-23 | 9-9-27 | 21-17-41 | 1-3-9 | 0-0-0 | 0-2-8 |
| Marlins | 21-20-51 | 10-8-28 | 11-12-23 | 10-6-32 | 11-14-19 | 0-0-0 | 4-1-5 |
Lead After Three Innings
The Mariners are -130 to lead after three innings, while the Marlins are +100.
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 39-30-23 | 22-14-11 | 17-16-12 | 32-26-21 | 7-4-2 | 0-0-0 | 3-3-4 |
| Marlins | 36-34-22 | 19-13-14 | 17-21-8 | 21-12-15 | 15-22-7 | 0-0-0 | 6-3-1 |
NRFI/YRFI
The NRFI market is paying -115 and the YRFI is paying -110.
- The NRFI is 45-47 in Mariners games this season. The Marlins also have a 45-47 NRFI record.
Last Time They Met
The Marlins recorded a 6-5 extra innings victory over the Mariners at LoanDepot Park yesterday. Owen Caissie went yard en route to that victory, hitting a home run to go with an RBI.
