MLB Prop Bets: Baltimore Orioles vs Seattle Mariners (June 8, 2026)
The Seattle Mariners (34-32) face the Baltimore Orioles (31-35) at Oriole Park at Camden Yards on Monday at 6:35pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Emerson Hancock is the probable pitcher for the Mariners, while Chris Bassitt is the probable pitcher for the Orioles. The Mariners are favored to win at -136, while the Orioles are at +113. The total runs line is set at 9.0, with OVER at +100 and UNDER at -120.
- The Mariners (+123) have a 28-38 Run Line record this season, while the Orioles (-149) hold a record of 30-36.
- The Mariners have a 31-33-2 O/U record this season (meaning 31 games have gone over the total runs line, 33 have gone under and two have resulted in a push). The Orioles have a 36-27-3 O/U record.
Scoring Insights
- The Mariners are averaging 4.2 runs per game this season (18th in the league). Comparatively, the Orioles are averaging +0.5 more at 4.7 runs (8th).
- In the field, the Mariners are allowing only 3.8 runs per game this season (5th in the league), while the Orioles are allowing an average of 5.2 runs (27th).
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 .237 (ranking 21st in the Major leagues), while the Orioles are batting .241 (17th).
Home Runs
- In terms of total home runs this season, the Orioles have hit 77 (10th in the Major Leagues). Meanwhile, the Mariners have managed 84 (7th).
Runs Batted In
- Finally, looking at their runs batted in, the Mariners have recorded 271 RBIs to rank T14th in the MLB this season. Comparatively, the Orioles have recorded 302 RBIs to rank 7th.
Pitching Insights:
Earned Run Average
- The Orioles have an earned run average of 4.58 this season (24th in the Majors), while The Mariners have an ERA of 3.50 (5th).
Strikeouts
- Turning our attention to total strikeouts, the Mariners have recorded 571 this season, ranking 10th in the MLB. Meanwhile, the Orioles rank 25th for total strikeouts, recording 512.
Opponent Batting Average
- Opponents are batting an average of .263 against the Orioles this season (29th in the Major Leagues). Comparatively, the Mariners' opponents are at .241 (15th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 18-14-34 | 11-9-15 | 7-5-19 | 18-13-28 | 0-1-6 | 0-0-0 | 3-0-7 |
| Orioles | 8-16-42 | 4-7-23 | 4-9-19 | 4-5-25 | 4-11-17 | 0-0-0 | 1-2-7 |
Lead After Three Innings
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 32-19-15 | 18-10-7 | 14-9-8 | 27-18-14 | 5-1-1 | 0-0-0 | 8-1-1 |
| Orioles | 20-27-19 | 14-12-8 | 6-15-11 | 10-12-12 | 10-15-7 | 0-0-0 | 5-3-2 |
NRFI/YRFI
The NRFI market is paying -115 and the YRFI is paying -115.
- The NRFI is 30-36 in Mariners games this season. The Orioles have a 38-28 NRFI record.
Last Time They Met
The Orioles recorded a 5-3 victory over the Mariners at Oriole Park at Camden Yards when these teams last met on August 14, 2025. Despite being on the wrong side of that result, Julio Rodriguez went yard in that matchup, hitting a home run to go with 2 RBIs.
