The Seattle Mariners host the San Diego Padres on May 15, 2026. First pitch from T-Mobile Park is scheduled for 9:40 p.m. EDT. The game will be broadcast on SEAM.
The Mariners are favored by -133 on the moneyline and by -1.5 on the run line. The Padres are +110 on the moneyline and +1.5 on the run line. The total is set at 7 runs.
Find my MLB picks and Padres vs Mariners prediction below, as well as probable pitchers, weather report, and more.
Padres vs Mariners Prediction
- Padres vs Mariners Pick: Under 7 (-102) | Play to -116
My Padres vs Mariners best bet is on the runs total under. Make sure to find the best odds by checking our live MLB odds page.
Padres vs Mariners Odds
| Padres Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -205 | 7 -115o / -105u | +110 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +170 | 7 -115o / -105u | -130 |
- Padres vs Mariners moneyline: Padres +110, Mariners -133
- Padres vs Mariners over/under: 7 (-115o / -105u)
- Padres vs Mariners spread: Mariners -1.5 (+165 ), Padres +1.5 (-200)
Padres vs Mariners Probable Pitchers
| RHP Randy Vásquez (SDP) | Stat | RHP Emerson Hancock (SEA) |
|---|---|---|
| 4-1 | W-L | 3-1 |
| 0.8 | fWAR (FanGraphs) | 0.6 |
| 3.05/4.62 | ERA / xERA | 3.21/3.89 |
| 3.40/3.78 | FIP / xFIP | 3.88/3.21 |
| 16.0% | K-BB% | 22.2% |
| 41.0% | GB% | 45.2% |
| .292 | BABIP | .267 |
| 99 | Stuff+ | 103 |
| 101 | Location+ | 108 |
Padres vs Mariners MLB Betting Preview
San Diego Padres Betting Preview: Vázquez Production Hard to Ignore
The Padres' rotation continues to be in a great state of flux, unless, of course, you are talking about Randy Vasquez.
While that statement was made tongue-in-cheek, it's not really a joke — he's now pitched comfortably underneath a 4.00 ERA since the start of last season, and this year he's improved upon some balkiness and has his WHIP down to 1.17.
Vasquez's big leap this year came in the form of strikeouts, pushing his punchout rate up from an extremely-poor 13.7% all the way to 23.2%. He's a fly-baller, so to see a .454 Expected Slugging is no surprise, but the .260 Expected Batting Average is a bit high considering he's induced far less contact this year.
Still, it's pretty hard to ignore over a year of production from Vasquez, even with the mediocre underlying numbers. To be fair to the righty, they were some of the worst in the league the last two years, so mediocrity is an improvement, and his ballpark and 10th-ranked outfield are sure to help him pitch underneath his "under the hood" numbers anyway.
Seattle Mariners Betting Preview: Hancock Back to Average
In the early stages of the season, we must remain vigilant. We must not overreact to a few surprising starts for a pitcher we've long thought had a problematic profile and one who's put up disastrous numbers in his first three seasons.
Emerson Hancock is a perfect example. Just a few weeks ago, his Baseball Savant page was dripping red, and now it's returned to an unassuming state. His Expected ERA is now right around the league average of 3.91, his barrel rate is at a career-high 11.5%, and while his Expected Batting Average remains a decent .234, his xSLG is still bloated at .446 — an area he's long struggled with.
Other than a ridiculous 14-strikeout performance against the lowly Royals, we haven't seen Hancock replicate the huge strikeout stuff he displayed in his season debut against the Guardians. His punchout rate remains strong at 27%, but it's heavily weighted, and around that magnificent start, he's struck out 11 in his last three outings, spanning 17 frames.
Hancock has long struggled to generate strikeouts, and with continued weakness in the chase and whiff departments, I'm just not sure what the realistic upside for him is. He's just another fly ball pitcher leaning on the friendly dimensions of his home park, and for a man who's allowed eight home runs already this year, he'll be thrilled to return. He's allowed just three homers in Seattle, pitching to a 2.74 ERA.
Padres vs Mariners Pick, Betting Analysis
We didn't really discuss both offenses, but that's because it's kind of hard to watch them. The Mariners may rank seventh in wRC+ over the last two weeks, but they're still striking out in 24.1% of plate appearances and are heavily reliant on walks and homers with a .171 Isolated Power and .227 average. For the year, they're hitting just .232, so this holds serve with what we've been seeing.
San Diego is a little different; it's gone from one of the best contact teams in the league to one of the worst, sitting near the bottom of the league with a 23.4% strikeout rate and ranking second-worst in the last 14 days at 26.5%. That should certainly aid a volatile Hancock, as should the fact that San Diego owns just a .143 ISO this year.
Neither team really hits for power with consistency, and for San Diego, it's virtually nonexistent. Therefore, it's hard to say these two arms, who have struggled against power hitters, shouldn't run into a ton of resistance.
Pick: Under 7 (-102) | Play to -116
