The Seattle Mariners host the Boston Red Sox on Tuesday, June 17, 2025. First pitch from T-Mobile Park is scheduled for 9:40 p.m. ET; the game will be broadcast on NESN and ROOTNW.
The Red Sox started the post-Rafael Devers era with a shutout win over the Mariners. Boston enters Tuesday on a six-game winning streak; it has won eight of its last 10 games.
Continue below to find my Red Sox vs Mariners prediction for Tuesday night.
My Red Sox vs Mariners Prediction
- Red Sox vs Mariners picks: Marcelo Mayer to Record a Double (+650)
My Red Sox vs Mariners best bet is on Marcelo Mayer to hit a double. Make sure to find the best odds by checking our live MLB odds page.
Red Sox vs Mariners Odds
| Red Sox Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 +124 | 7.5 -100o / -122u | +145 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 -149 | 7.5 -100o / -122u | -176 |
Red Sox vs Mariners Projected Starting Pitchers
| RHP Walker Buehler (BOS) | Stat | RHP Bryan Woo (SEA) |
|---|---|---|
| 5-4 | W-L | 5-4 |
| 0.0 | fWAR (FanGraphs) | 1.5 |
| 5.01 / 4.44 | ERA /xERA | 3.39 / 3.21 |
| 5.10 / 4.10 | FIP / xFIP | 3.57 / 3.60 |
| 1.38 | WHIP | 0.98 |
| 13.5% | K-BB% | 18.4% |
| 44% | GB% | 39.5% |
| 97 | Stuff+ | 103 |
| 98 | Location+ | 111 |
Alex Kolodziej’s Red Sox vs Mariners Preview
Boston Red Sox Betting Preview: Prop Value on Marcelo
For tonight’s Red Sox vs. Mariners matchup, I’m backing Red Sox rookie Marcelo Mayer to record a double, listed at +650 odds on FanDuel.
Mayer’s an exciting young prospect who was promoted to the majors just last month. He and Roman Anthony will be tasked with picking up the slack in the Red Sox lineup with Rafael Devers no longer in the picture.
Over 19 games this season, Mayer’s tallied three home runs and three doubles.
Though T-Mobile Park, the Mariners' home field, isn’t typically known as a strong doubles venue, it’s yielded value recently; for example, our PRO Projections accurately predicted Kyle Manzardo hitting a double in the same environment just two days ago.
Red Sox vs Mariners Prediction, Betting Analysis
Action PRO models forecast Mayer to notch 0.20 doubles in tonight’s contest — translating to an implied fair price around +400.
Mayer’s admittedly on an 0-for-9 slump, and the challenging conditions T-Mobile Park presents for hitters early in series (batter’s eye, etc.) didn’t do him any favors yesterday.
Pricing in the doubles markets often tops out near +700. At +650, Mayer’s bounce-back potential in his second game at T-Mobile makes this bet a high-level pick for Tuesday night.
Pick: Marcelo Mayer to Record a Double (+650)
Moneyline
I have no bet on the moneyline.
Run Line (Spread)
I have no bet on the run line.
Over/Under
I have no bet for the game total.
