The Seattle Mariners took some big swings to land Eugenio Suarez and Josh Naylor before the trade deadline, and they’ll look to build on that buzz against the Texas Rangers.
However, my Rangers vs. Mariners predictions point to Texas raining on the Seattle parade in tonight's AL West showdown.
Check out my MLB picks on Thursday, July 31.
Rangers vs Mariners prediction
My Rangers vs Mariners best bet: Rangers moneyline (+143 at Caesars)
Unlike the headline-grabbing Seattle Mariners, it’s been a quiet run-up to the trade deadline for the Texas Rangers, and that’s surely a reflection of the team’s strong recent form.
The arrow is pointing up for the Rangers, who’ve won seven of their last nine. The offense has piled up 52 runs in that span, so it’s natural to have some hesitation about tinkering with the current formula. While Texas is just 23-32 on the road, I like this underdog price against a Seattle team adjusting to new arrivals, including former Mariner Eugenio Suarez, and has dropped back-to-back games.
While it’s been a rollercoaster season for second-year righty Kumar Rocker, Texas has walked away with victories in two of his past three starts. Rocker also pitched six innings of two-run ball when these teams squared off in late June.
Mariners starter George Kirby boasts a 4.50 ERA in 2025, but the hosts’ offense is much more of a wild card. It’s easy to see why they went looking for bats before the deadline, as the M's have scored three runs or fewer in seven of their past 10.
As this crucial four-game series gets underway, I prefer to roll the dice with the Rangers, who are 28-17 in their last 45 games and eyeing a surge up the AL West standings.
Rangers vs Mariners same-game parlay (SGP)
Rangers moneyline
Under 7.5
Adolis Garcia 1+ hits
Despite the heavy-hitters added to the Seattle line-up over the past week, the Under provides nice value tonight. It’s 8-2 in the Mariners’ past 10, and 61-45 overall for Texas.
Adolis Garcia is 6-for-20 against Kirby, including a homer and a double. He’s chipped in with a hit in five of his last six games, and I see him adding another here.
Rangers vs Mariners odds
Rangers vs Mariners live odds
Rangers vs Mariners opening odds
- Moneyline: Texas +130 | Seattle -155
- Run line: Texas +1.5 (-165) | Seattle -1.5 (+140)
- Over/Under: Over 7.5 (-110) | Under 7.5 (-110)
Rangers vs Mariners trend
The Mariners have cashed the Team Total Under in 22 of their last 34 home games. Find more MLB betting trends for Rangers vs. Mariners.
How to watch Rangers vs Mariners and game info
| Location | T-Mobile Park, Seattle, WA |
| Date | Thursday, 7-31-2025 |
| First pitch | 9:40 p.m. ET |
| TV | MLB Network. RSN, RSNW |
| Rangers starting pitcher | Kumar Rocker (4-4, 5.73 ERA) |
| Mariners starting pitcher | George Kirby (5-5, 4.50 ERA) |
Rangers vs Mariners latest injuries
Rangers vs Mariners weather
Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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