The Seattle Mariners host the Texas Rangers on September 10, 2026. First pitch from T-Mobile Park is scheduled for 4:10 p.m. ET. The game will be broadcast on RSN.
The Mariners are favored by -135 on the moneyline and by -1.5 on the run line. The Rangers are +115 on the moneyline and +1.5 on the run line. The total is set at 6.5 runs.
Find my MLB picks and Rangers vs Mariners prediction below, as well as probable pitchers, weather report, and more.
Rangers vs Mariners Prediction
- Rangers vs Mariners Pick: Jacob deGrom Over 6.5 Strikeouts (-115)
My Rangers vs Mariners best bet is on Jacob deGrom to record seven or more strikeouts this afternoon. Make sure to find the best odds by checking our live MLB odds page.
Rangers vs Mariners Odds
| Rangers Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -220 | 6.5 -120o / 100u | +115 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +180 | 6.5 -120o / 100u | -135 |
- Rangers vs Mariners moneyline: Rangers +115, Mariners -135
- Rangers vs Mariners over/under: 6.5 (-120o / -100u)
- Rangers vs Mariners spread: Rangers +1.5 (-220), Mariners -1.5 (+180)
Rangers vs Mariners Probable Pitchers
| Jacob deGrom (RHP, TEX) | Stat | Logan Gilbert (RHP, SEA) |
|---|---|---|
| 10-9 | W-L | 11-9 |
| 3.7 | fWAR (FanGraphs) | 2.5 |
| 3.96 / 3.56 | ERA / xERA | 3.71 / 3.74 |
| 3.18 / 3.11 | FIP / xFIP | 3.86 / 3.54 |
| 23.4 | K-BB% | 20.3 |
| 36.7 | GB% | 36.7 |
| .293 | BABIP | .262 |
| 109 | Stuff+ | 110 |
| 108 | Location+ | 103 |
Rangers vs Mariners MLB Betting Preview
The most negative run environment in baseball (-15% on average) is forecast not only for weather that runs 0-4% below average, but also for plate umpire Rob Drake, who suppresses run scoring by 3%.
Oh, and we also have a pair of great pitchers on the mound, though both would probably call their 2026 season a disappointment.
Jacob deGrom allowed eight runs in Chicago (AL) three starts back, but has allowed two runs or less in five of his last six starts and 19 of 27 starts this year. However, a few random blowups have his ERA sitting at 3.96, the worst of his career by nearly half a run and only his second time above 3.1.
The great news is that a 3.64 FIP is his only estimator above 3.25 and is exactly 0.6 runs above his xERA, suggesting 19 home runs on 31 barrels is a bit of misfortune.
Josh Naylor is the low man (95 wRC+) in the projected Seattle lineup against RHP, with Lazaro Montes’s unsustainable 215 mark despite striking out seven times in 14 PAs against RHP elevating the lineup average to 126. BARTOLO more credibly averages the lineup out to a 108 WRC+ projection.
Their 108 wRC+ average at home and even 114 over the last 30 days are less affected by Montes, though Cal Raleigh is trying to make up for his unfortunate 2026 season in a single month (201 wRC+).
The Rangers own one of the more remarkably undervalued defenses in the league, with Thursday’s unit projected at 24 FRV without having to bench either catcher, as these teams also played a day game on Wednesday, which is unusual.
A Texas bullpen ranked 17th by BARTOLO has only the 23rd-best estimators over the last 30 days, with a 4.74 FIP, 4.31 xFIP, and 3.99 SIERA.
Logan Gilbert’s 20.3% K-BB rate is his lowest mark in three years, despite still being on the wish list of most pitchers in this league.
He’s always been a bit home run prone, and while you might consider 26 home runs on 45 barrels a bit unlucky, his 3.71 ERA, 3.86 FIP, and 3.73 xERA are all well aligned with additional contact-neutral estimators closer to three and a half.
The Texas projected lineup averages a 114 wRC+ on the road with only Ezequiel Duran (88 wRC+), perhaps the most pleasantly surprising Ranger overall this season, and Evan Carter (71) below average on the road. However, the lineup also averages just a 95 wRC+ against RHP, as the bottom two spots in the order have put up almost no production. The projected lineup averages a perfect 100 wRC+ over the last 30 days.
The Seattle defense has been as bad as Texas has been good, projecting for -21 FRV on Thursday.
BARTOLO rates the Mariners the 7th-best bullpen in the league, while they are barely ahead of the Rangers for the 22nd-best estimators over the last month, but it comes with a caveat.
The Seattle bullpen has a 4.02 xFIP and 3.77 SIERA over the last 30 days (through Tuesday), but the league-worst 7.62 ERA and 5.25 FIP. The obvious culprit has been 1.9 HR/9.
Rangers vs Mariners Pick, Betting Analysis
We’re going to veer back towards deGrom for my preferred play in this game. He’s struck out batters from the left-hand side (29.9%) and right-hand side (29.8%) at nearly perfectly even rates, which means that 15 of the 21 I project him to face will likely come from the left-hand side without any Seattle surprises.
That may be a bit conservative, but deGrom has faced a high of 22 batters just once in his last six starts and actually helps me prove my point.
While the Mariners have improved on contact numbers over the last year or so, it’s still a lineup that averages a 24.2 K% vs RHP this season through the first 21 projected batters.
As much as Rob Drake boosts run scoring, he’s essentially neutral for strikeouts, but the early weather and park forecast is a 20% bump to strikeouts.
The 6.5 number on deGrom seems a bit low.
Pick: Jacob deGrom Over 6.5 Strikeouts (-115, bet365 | 0.55u, Play to -135)
