The Cleveland Guardians went 4-3 against the Seattle Mariners in the 2026 regular season. Cleveland won two of four games in Seattle from March 26-29, then took two of three games at Progressive Field from June 26-28. The final meeting was a 6-5 Guardians comeback victory on June 28.
Key Takeaways
- The Guardians finished 4-3 against the Mariners in the 2026 regular season.
- The teams played seven games, split between Seattle and Cleveland.
- Cleveland won the opening and third games of the March series in Seattle.
- Seattle won the series finale in March by a commanding 8-0 score.
- Cleveland won the June series 2-1, including a five-run eighth inning in the final game.
- The 2026 regular-season series was completed on June 28, so there is no Guardians-Mariners regular-season game remaining this year.
Guardians vs Mariners 2026 Head-to-Head Record
The Guardians vs Mariners matchup produced seven games during the 2026 MLB regular season. Cleveland finished with four wins, while Seattle won three.
The first four games were played at T-Mobile Park in Seattle from March 26-29. The clubs then met for a three-game series at Progressive Field in Cleveland from June 26-28. Baseball-Reference’s June 28 matchup page lists the complete season series and confirms the final meeting of the regular season.
Complete 2026 Game Results
| Date | Winner | Score | Location |
| March 26 | Guardians | CLE 6-4 | Seattle |
| March 27 | Mariners | SEA 5-1 | Seattle |
| March 28 | Guardians | CLE 6-5 | Seattle |
| March 29 | Mariners | SEA 8-0 | Seattle |
| June 26 | Mariners | SEA 3-1 | Cleveland |
| June 27 | Guardians | CLE 4-3 | Cleveland |
| June 28 | Guardians | CLE 6-5 | Cleveland |
The results show how closely the overall matchup was contested. Neither team swept a series, and four of the seven games were decided by two runs or fewer.
How the March Series Played Out
The first Guardians-Mariners series of 2026 was unusual because it included four games in Seattle.
Cleveland opened the series with a 6-4 victory on March 26. The Guardians collected 12 hits and hit two home runs in the win. Seattle responded the following day with a 5-1 victory.
The third game was one of the closest contests of the opening series. Cleveland won 6-5 in 10 innings on March 28, giving the Guardians a 2-1 series lead. Seattle then finished the series with its most convincing victory.
On March 29, the Mariners shut out Cleveland 8-0. Emerson Hancock recorded a career-high nine strikeouts, while Cooper Criswell and Seattle’s pitching staff kept the Guardians off the scoreboard. Chase DeLauter’s seventh-inning single ended Seattle’s no-hit bid, but Cleveland never produced a run.
The four-game Seattle series therefore ended in a 2-2 split.
What Happened in the June Series?
The teams met again three months later, this time at Progressive Field.
Seattle won the June 26 opener 3-1. Cleveland answered with a 4-3 victory on June 27, setting up a decisive rubber match on June 28.
Cleveland’s Late Comeback
The June 28 game became the most memorable matchup of the season series.
Seattle built a 4-1 lead before Cleveland rallied in the eighth inning. The Guardians scored five runs in the bottom of the eighth, turning a three-run deficit into a 6-4 lead. Chase DeLauter tied the game with a two-run single, and Rhys Hoskins followed with a go-ahead two-run double.
Seattle scored once in the ninth, but Cleveland held on for a 6-5 victory.
The comeback was especially notable because Cleveland entered the game 2-33 when trailing after seven innings, according to MLB’s game coverage. The win also gave the Guardians the June series and their fourth victory against Seattle in 2026.
Guardians vs Mariners: Key Differences in the Series
The seven games showed two very different types of results.
| Category | Guardians | Mariners |
| 2026 series wins | 4 | 3 |
| Games played | 7 | 7 |
| Games won in Seattle | 2 | 2 |
| Games won in Cleveland | 2 | 1 |
| Shutout wins | 0 | 1 |
| 10-inning wins | 1 | 0 |
| Final season-series record | 4-3 | 3-4 |
Cleveland’s advantage came from winning the June series after splitting the four-game opening set. Seattle’s biggest single-game result was its 8-0 shutout on March 29.
The overall record was therefore decided by a narrow margin rather than one team’s complete dominance.
Did the Guardians and Mariners Play Again After June?
No. The June 28 meeting was the final scheduled regular-season game between Cleveland and Seattle in 2026.
The MLB schedule had the Guardians hosting Seattle for three games from June 26-28, and there were no later regular-season meetings between the clubs.
That distinction matters for searches such as “Guardians vs Mariners today” or “Guardians vs Mariners next game.” As of September 29, 2026, both clubs have completed their regular seasons, so the seven-game regular-season series is already finished.
The Guardians ended the regular season by clinching their third consecutive AL Central title. Seattle finished its regular season at 76-86 after defeating the Los Angeles Angels 7-3 on September 27.
Could Guardians vs Mariners Meet in the Playoffs?
A regular-season head-to-head record does not automatically determine whether two teams will meet in the postseason. Their playoff paths depend on qualification and the 2026 American League postseason bracket.
For 2026, Cleveland entered the postseason after clinching the AL Central and securing the No. 2 seed in the American League. Seattle completed its season at 76-86, which put the Mariners outside the postseason field.
That means the Guardians vs Mariners regular-season matchup is complete for 2026, with Cleveland holding the final 4-3 edge.
Frequently Asked Questions
Who won the Guardians vs Mariners series in 2026?
The Cleveland Guardians won the 2026 season series 4-3. Cleveland split four games in Seattle and then won two of three games at Progressive Field in June.
What was the final Guardians vs Mariners record?
Cleveland finished 4-3 against Seattle in the 2026 regular season. The teams played seven games in total.
What was the highest-scoring Guardians vs Mariners game in 2026?
The highest combined score came on March 28, when Cleveland defeated Seattle 6-5 in 10 innings, for 11 total runs. The June 28 game also produced 11 runs, with Cleveland winning 6-5.
What was the last Guardians vs Mariners score?
The last 2026 regular-season meeting was on June 28 at Progressive Field. The Guardians defeated the Mariners 6-5, overcoming a 4-1 deficit with five runs in the eighth inning.
How many times did the Guardians play the Mariners in 2026?
The Guardians and Mariners played seven regular-season games in 2026. Four were played in Seattle in March, followed by three games in Cleveland in June.
Did Seattle sweep Cleveland in 2026?
No. Seattle won three of the seven meetings. The Mariners did win the March 29 game 8-0, but Cleveland finished the season series with a 4-3 advantage.
Conclusion
The 2026 Guardians vs Mariners season series was competitive from beginning to end. Cleveland finished with a 4-3 edge, splitting the opening four-game series in Seattle before winning two of three in Cleveland.
The final matchup provided the most dramatic finish, as the Guardians erased a three-run deficit in the eighth inning and held on for a 6-5 victory. With both teams’ regular seasons now complete, that June comeback remains the final chapter of their 2026 regular-season matchup.
I am Stephen King an American writer exploring spirituality, dreams, mindfulness, and personal growth. Through SpiritualDreamz.com, he shares thoughtful insights to inspire reflection, clarity, and meaningful everyday living.
