The Seattle Mariners host the Tampa Bay Rays on August 9, 2025. First pitch from T-Mobile Park is scheduled for 9:40 p.m. EDT; the game will be broadcast on MLB Network.
The Mariners took the first game of this series with a 3-2 victory last night to extend their winning streak to five games. Logan Evans will take the mound for Seattle and Joe Boyle will start for Tampa Bay.
Find my MLB betting preview and Rays vs Mariners prediction below, as well as probable pitchers, betting trends, injury reports and more.
My Rays vs Mariners Prediction
- Rays vs Mariners pick: Under 8 (-115)
My Rays vs Mariners best bet is Under 8 total runs in this game. 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 -190 | 8 -105o / -115u | +118 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +155 | 8 -105o / -115u | -145 |
Rays vs Mariners Projected Starting Pitchers
| RHP Joe Boyle (TB) | Stat | RHP Logan Evans (SEA) |
|---|---|---|
| 1-1 | W-L | 5-4 |
| 0.4 | fWAR (FanGraphs) | -0.1 |
| 2.30 / 2.71 | ERA / xERA | 4.30 / 5.52 |
| 3.58 / 4.61 | FIP / xFIP | 5.01 / 4.60 |
| 0.88 | WHIP | 1.41 |
| 13.9 | K-BB% | 10.0 |
| 36.2 | GB% | 40.2 |
| 107 | Stuff+ | 96 |
| 83 | Location+ | 102 |
Rays vs Mariners Preview
The Rays' offense continues its downward trend. In July, they were 28th in wRC+ with 87 and 26th in slugging with .373.
This month, Tampa Bay ranks 27th in wRC+, with an even worse 62 rating, and 27th in average with a collective .203.
Tonight, they will face Mariners starter Logan Evans, who holds a 3.03 ERA at home, courtesy of his home stadium, T-Mobile Park, which offers the best conditions for pitchers in the majors, according to Baseball Savant's Park Factors.
Joe Boyle will get the ball for the Rays, with a 2.30 ERA and 0.88 WHIP this season. In his last start, Boyle held the Dodgers lineup scoreless through five complete innings, allowing only three hits.
The first game of this series already hit the under, with only five runs total. The trend could continue on Saturday with adverse weather conditions for batters.
Our Bet Labs Wind Whisper Unders system recommends this play for tonight's game.
The system titled "Wind Whisper Unders" is built for MLB totals where weather and market signals align quietly but consistently toward the under. It targets regular season games from 2020 through 2025 where the closing total falls between 7 and 10 runs —a middle range that allows for variance but avoids extremes.
This strategy homes in on games with a specific weather profile: wind blowing from left, in from right, or straight in, with speeds between 3 and 15 miles per hour.
Combined with moderate temperatures between 30 and 70, these environmental conditions help suppress deep fly balls without overly skewing the market.
Line movement also plays a role. The total must have dropped by up to 2.5 runs from open to close, signaling steady downward pressure from sharper bettors.
Importantly, the public is not fully behind the under —support remains modest, falling between 1 and 55. This indicates market resistance and helps ensure the number isn’t over-adjusted.
By aligning downward line moves, cooling weather patterns, and under-the-radar betting splits, the system consistently identifies games where offense is subtly but significantly less likely to break out.
Pick: Under 8 (-115, BetMGM)
