MLB Prop Bets: San Diego Padres vs Seattle Mariners (April 15, 2026)
The Seattle Mariners (8-10) face the San Diego Padres (11-6) at Petco Park on Wednesday at 9:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Emerson Hancock is the probable pitcher for the Mariners, while Randy Vasquez is the probable pitcher for the Padres. The Mariners opened as favorites but this has since changed, with the Padres coming into -115 and Mariners drifting to -105. The total runs line is set at 8.0, with OVER at -108 and UNDER at -112.
- The Mariners (+148) have an 8-10 Run Line record this season, while the Padres (-180) hold a record of 11-6.
- The Mariners have an 8-10-0 O/U record this season (meaning eight games have gone over the total runs line and 10 have gone under). The Padres have an 8-8-1 O/U record.
Scoring Insights
- The Mariners are averaging 3.9 runs per game this season (24th in the league). Comparatively, the Padres are averaging +0.7 more at 4.6 runs (12th).
- In the field, the Mariners are allowing only 3.4 runs per game this season (4th in the league), while the Padres are allowing an average of 3.6 runs (T5th).
Let's take a look at how these teams perform in some other key statistical areas.
Batting Insights:
Batting Average
- Looking at their batting averages this season, the Mariners are at .205 (ranking 28th in the Major leagues), while the Padres are batting .233 (17th).
Home Runs
- In terms of total home runs this season, the Padres have hit 16 (T17th in the Major Leagues). Meanwhile, the Mariners have managed 16 (T17th).
Runs Batted In
- Finally, looking at their runs batted in, the Mariners have recorded 67 RBIs to rank T20th in the MLB this season. Comparatively, the Padres have recorded 73 RBIs to rank T12th.
Pitching Insights:
Earned Run Average
- The Padres have an earned run average of 3.27 this season (6th in the Majors), while The Mariners have an ERA of 3.02 (2nd).
Strikeouts
- Turning our attention to total strikeouts, the Mariners have recorded 152 this season, ranking 12th in the MLB. Meanwhile, the Padres rank T9th for total strikeouts, recording 158.
Opponent Batting Average
- Opponents are batting an average of .231 against the Padres this season (15th in the Major Leagues). Comparatively, the Mariners' opponents are at .231 (14th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 5-5-8 | 4-3-4 | 1-2-4 | 5-4-6 | 0-1-2 | 0-0-0 | 5-2-3 |
| Padres | 2-3-12 | 2-3-6 | 0-0-6 | 2-1-6 | 0-2-6 | 0-0-0 | 1-1-8 |
Lead After Three Innings
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Mariners | 6-6-6 | 5-4-2 | 1-2-4 | 5-5-5 | 1-1-1 | 0-0-0 | 3-3-4 |
| Padres | 5-6-6 | 4-4-3 | 1-2-3 | 3-2-4 | 2-4-2 | 0-0-0 | 3-2-5 |
NRFI/YRFI
The NRFI market is paying -135 and the YRFI is paying +105.
- The NRFI is 6-12 in Mariners games this season. The Padres have a 12-5 NRFI record.
Last Time They Met
The Padres recorded a 4-1 victory over the Mariners at Petco Park yesterday. Jackson Merrill led the way to that victory, hitting a home run. That result snapped the Mariners' five-game winning streak against the Padres at Petco Park.
