The Texas Rangers host the Seattle Mariners on Saturday, May 3, 2025. First pitch from Globe Life Field is scheduled for 7:05 p.m. ET; the game will be broadcast on Rangers Sports Network and ROOT NW.
Find my Mariners vs Rangers prediction below, as well as probable pitchers, betting trends and more.
My Mariners vs Rangers Prediction
- Mariners vs Rangers pick:Under 9
My Mariners vs Rangers best bet is the game total to stay under 9. Make sure to find the best odds by checking our live MLB odds page.
Seattle Mariners vs Texas Rangers Spread, Odds
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +125 | 9 -110o / -110u | -132 |
| Rangers Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -150 | 9 -110o / -110u | +112 |
Seattle Mariners vs Texas Rangers Projected Starting Pitchers
| RHP Luis Castillo (SEA) | Stat | LHP Patrick Corbin (TEX) |
|---|---|---|
| 3-2 | W-L | 2-1 |
| 0.4 | fWAR (FanGraphs) | 0.1 |
| 3.62 / 4.31 | ERA /xERA | 3.79 / 4.63 |
| 3.92 / 4.43 | FIP / xFIP | 4.48 / 4.00 |
| 1.39 | WHIP | 1.58 |
| 9.9% | K-BB% | 10.7% |
| 47.5% | GB% | 41.9% |
| 96 | Stuff+ | 96 |
| 103 | Location+ | 102 |
Alex Kolodziej’s Seattle Mariners vs Texas Rangers Preview
Mariners vs Rangers Over/Under Prediction
It may not jump off the paper, but Saturday’s Mariners vs. Rangers game offers a compelling case for betting the under.
Last season, the Mariners demonstrated one of the starkest home-road splits in terms of over/under performance.
At home, they consistently played games that finished under the total — the pitching staff benefited from the familiar environment and its ability to control the pace of the game. When Seattle hits the road, bettors should not automatically expect a high-scoring affair, even when the lineup changes venues.
Our PRO Projections, which leverage proprietary betting data from MLB experts to identify betting edges, suggest the fair total for this game should actually be 7.6 runs, which is significantly lower than the number currently posted.
Tonight’s starter for Seattle is Luis Castillo. The Rangers struggle at the plate specifically against right-handed pitchers, as they rank fifth worst in batting average against.
Additionally, Rangers starter Patrick Corbin, who is seen as well past his prime and undervalued in the market, may find an opportunity to shine in this matchup.
Given these factors, betting the under appears to be the move based on our data-driven insights.
Pick: Under 9
Moneyline
I have no play on either side.
Spread
I'm also passing on the run line.
Total
My best bet for this game is the under.
