The Seattle Mariners host the Tampa Bay Rays on August 9, 2026. First pitch from T-Mobile Park is scheduled for 4:10 p.m. ET. The game will be broadcast on RAYS.
The Mariners are favored by -116 on the moneyline and by -1.5 on the run line. The Rays are +106 on the moneyline and +1.5 on the run line. The total is set at 7.5 runs.
Find my MLB picks and Rays vs Mariners prediction below, as well as probable pitchers, weather report, and more.
Rays vs Mariners Prediction
- Rays vs Mariners Pick: NRFI (-130)
My Rays vs Mariners best bet is no runs in the first inning. Make sure to find the best odds by checking our live MLB odds page.
Rays vs Mariners Odds
| Rays Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -220 | 7.5 -118o / -104u | +106 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +180 | 7.5 -118o / -104u | -116 |
- Rays vs Mariners moneyline: Rays +106, Mariners -116
- Rays vs Mariners over/under: 7.5 (-118o / -104u)
- Rays vs Mariners spread: Rays +1.5 (-220), Mariners -1.5 (+180)
Rays vs Mariners Probable Pitchers
| Ian Seymour (LHP, TB) | Stat | Emerson Hancock (RHP, SEA) |
|---|---|---|
| 8-3 | W-L | 6-6 |
| 1.1 | fWAR (FanGraphs) | 1.7 |
| 4.27 / 3.54 | ERA / xERA | 3.33 / 4.31 |
| 3.88 / 3.84 | FIP / xFIP | 3.76 / 3.81 |
| 20.4 | K-BB% | 17.0 |
| 28.9 | GB% | 41.8 |
| .265 | BABIP | .262 |
| 104 | Stuff+ | 101 |
| 99 | Location+ | 107 |
Rays vs Mariners MLB Betting Preview, Prediction
The Mariners will host the Rays on Sunday afternoon to conclude a three-game American League set at T-Mobile Park in Seattle.
Emerson Hancock will start for Seattle, while Ian Seymour will start for Tampa Bay.
Across 116 frames, Hancock is running a career-best 3.33 ERA and 1.07 WHIP this season — both marks rank among the top-20 qualified starting pitchers.
Meanwhile, Seymour has started to find his groove, as he’s recorded two quality starts across his past three outings.
I expect the southpaw to have another quality outing on Sunday against a Seattle lineup that features five left-handed hitters.
I think both these guys shove early in the game, especially in the league’s most pitcher-friendly park.
Pick: NRFI (-130, FanDuel)
