The San Diego Padres swept the Seattle Mariners 6-0 in their 2026 regular-season meetings. San Diego won three games at Petco Park in April and three more at T-Mobile Park in May. Historically, the Mariners lead the regular-season series 73-70 through 2026, making this an interesting interleague matchup despite the teams not being division rivals.
Key Takeaways
- The Padres went 6-0 against the Mariners during the 2026 regular season.
- San Diego won all three games at Petco Park and all three at T-Mobile Park.
- The 2026 Padres-Mariners series included three shutout victories by the Padres.
- Seattle still leads the all-time regular-season series 73-70 through 2026.
- The Padres and Mariners play in different leagues, so their meetings are part of MLB’s interleague schedule.
Padres vs Mariners: 2026 Head-to-Head Record
The 2026 season produced a one-sided result between the San Diego Padres and Seattle Mariners. The teams met six times during the regular season, and San Diego won every game.
The first three games took place at Petco Park in San Diego from April 14-16. The Padres opened the series with a 4-1 win, followed it with a 7-6 victory, and completed the sweep with a 5-2 win.
The teams met again in Seattle from May 15-17. San Diego won 2-0, 7-4, and 8-3 to complete another three-game sweep.
2026 Game Results
| Date | Location | Result |
|---|---|---|
| April 14, 2026 | Petco Park | Padres 4, Mariners 1 |
| April 15, 2026 | Petco Park | Padres 7, Mariners 6 |
| April 16, 2026 | Petco Park | Padres 5, Mariners 2 |
| May 15, 2026 | T-Mobile Park | Padres 2, Mariners 0 |
| May 16, 2026 | T-Mobile Park | Padres 7, Mariners 4 |
| May 17, 2026 | T-Mobile Park | Padres 8, Mariners 3 |
Across those six games, San Diego scored 33 runs, while Seattle scored 16. The Padres also hit six home runs during the regular-season matchup and posted a .279 batting average across the six games.
Padres vs Mariners All-Time Record
The all-time matchup is much closer than the 2026 results suggest.
Through the 2026 regular season, the Seattle Mariners lead San Diego 73-70 in 143 regular-season meetings. Seattle has scored 660 runs compared with San Diego’s 573, and the Mariners also hold the better all-time batting numbers in the matchup.
| Category | Padres | Mariners |
|---|---|---|
| Regular-season wins | 70 | 73 |
| Regular-season losses | 73 | 70 |
| Games | 143 | 143 |
| Runs per game | 4.0 | 4.6 |
| Batting average | .240 | .256 |
| Home runs | 141 | 165 |
| OPS | .690 | .740 |
The important point is that San Diego’s perfect 6-0 record in 2026 significantly narrowed the historical gap.
Before the 2026 season, Seattle had generally held the advantage in this matchup. The Padres reversed that trend by winning every regular-season game between the clubs this year.
Padres vs Mariners: Team and League Comparison
The Padres and Mariners are both MLB franchises, but they compete in different leagues.
The San Diego Padres play in the National League West, while the Seattle Mariners play in the American League West. Because they are in different leagues and divisions, they do not play each other as frequently as division opponents.
That makes each regular-season series more limited and potentially more important for tracking interleague performance.
The 2026 season also produced very different outcomes for the two teams overall. San Diego finished the regular season with a 91-71 record, while Seattle finished 76-86.
The Padres’ stronger overall season fits with what happened in their six head-to-head games, although a six-game matchup alone does not determine which team is better across an entire season.
Why the 2026 Matchup Stands Out
The biggest story is simple: San Diego dominated the season series.
The Padres did not merely win the matchup by a narrow margin. They swept Seattle in both series.
The April series was competitive, particularly the 7-6 second game. However, San Diego controlled the May series more comfortably. The Padres shut out Seattle 2-0 in the opener and then scored seven and eight runs in the final two games.
The May 17 finale was particularly productive for San Diego. The Padres collected 10 hits and scored eight runs in the 8-3 victory.
The Padres’ six-game offensive line against Seattle included a .279 average, .330 on-base percentage, .441 slugging percentage, and .771 OPS.
Padres vs Mariners Recent History
The 2026 sweep was a major change from the previous season.
In 2025, Seattle won five of six regular-season meetings with San Diego. The Mariners won three straight games at Petco Park in May before the Padres responded with one victory in Seattle in August. Seattle finished the 2025 season series with a 5-1 advantage.
That makes the year-to-year turnaround especially notable:
- 2025: Mariners 5-1
- 2026: Padres 6-0
San Diego therefore went from losing five of six meetings to winning all six the following season.
Are the Padres and Mariners Rivals?
The Padres and Mariners are not traditional MLB rivals.
They play in different leagues and different divisions, so they do not have the regular divisional competition associated with rivalries such as Padres-Dodgers or Mariners-Astros.
Still, the matchup has an interesting history because the teams share the Peoria Sports Complex for spring training. MLB’s 2026 spring-training information noted that the Padres and Mariners opened spring play against each other and shared the complex in Arizona.
That shared spring-training environment gives the clubs a connection that goes beyond their limited regular-season meetings.
Will the Padres Play the Mariners Again?
There was no additional 2026 regular-season Padres vs Mariners game after their May 17 meeting. Their six-game regular-season schedule was completed with San Diego’s 8-3 victory in Seattle.
However, the teams are scheduled to meet again during 2027 spring training. The Padres announced that their 2027 Cactus League schedule begins against Seattle on February 19 at the Peoria Sports Complex. San Diego will also face the Mariners again in its spring finale on March 22.
So fans looking for the next Padres-Mariners matchup should distinguish between spring training and the regular season.
Padres vs Mariners FAQ
Who won the Padres vs Mariners series in 2026?
The San Diego Padres won every 2026 regular-season meeting against the Seattle Mariners. San Diego swept both three-game series and finished with a 6-0 record against Seattle.
What is the all-time Padres vs Mariners record?
Through the 2026 regular season, the Seattle Mariners lead the Padres 73-70 in 143 regular-season meetings. Seattle has the historical advantage despite losing all six games to San Diego in 2026.
How many games did the Padres and Mariners play in 2026?
The Padres and Mariners played six regular-season games in 2026. San Diego hosted three games at Petco Park in April, while Seattle hosted three games at T-Mobile Park in May. The Padres won all six.
Are the Padres and Mariners in the same league?
No. The Padres are members of the National League, while the Mariners are members of the American League. Their meetings are therefore interleague games.
Where do the Padres and Mariners play?
The Padres play their home games at Petco Park in San Diego, while the Mariners play at T-Mobile Park in Seattle. The 2026 regular-season series was split between those two stadiums.
Conclusion
The Padres vs Mariners matchup produced a clear winner in 2026. San Diego swept all six regular-season games, winning three at Petco Park and three at T-Mobile Park. The Padres scored 33 runs in those games while allowing only 16.
Historically, however, Seattle still holds a narrow 73-70 advantage in the regular-season series. The contrast between the historical record and San Diego’s 6-0 performance in 2026 makes this interleague matchup worth watching in future seasons.
The next scheduled meetings come during 2027 spring training, giving both clubs another chance to renew a matchup that has become surprisingly one-sided in the Padres’ favor.
