No, the Seattle Mariners have never played in a World Series. Of course, that means they have never won one. But it's even more notable that they've never even reached that stage. The Mariners have never won an American League pennant.

With the Mariners battling the Toronto Blue Jays in the ALCS, we spoke to the directors of the team's unofficial documentary about why the M's are special.

With a trip to the World Series on the line, the Seattle Mariners couldn’t close the deal Sunday night, falling to the Toronto Blue Jays 6-2 in Game 6 of the American League Championship Series at Rogers Centre. PREVIOUSLY | 49 years in the making: Mariners stand on the edge of first-ever World Series spot

Within minutes on Friday, Seattle fans went from panic to jubilation and a clear path for the Mariners to put an end to the American League Championship Series against the Blue Jays.

Cal Raleigh’s leadoff home run tied Game 5 of the American League Championship Series in the bottom of the eighth, and four batters later, Eugenio Suárez unleashed an opposite-field grand slam that lifted the Mariners to a 6-2 victory over the Toronto Blue Jays at T-Mobile Park.

The Seattle Mariners will be sailing in uncharted waters Sunday night when they visit the Toronto Blue Jays for Game 6 of the American League Championship Series. The Mariners can shed the albatross of never having reached the World Series with a victory.

Vladimir Guerrero Jr. hit his sixth home run of the postseason, rookie Trey Yesavage struck out seven in 5 2/3 innings and the Toronto Blue Jays forced a Game 7 in the American League Championship Series by beating the Seattle Mariners 6-2 on Sunday night.

Vladimir Guerrero Jr. homered and scored on one of Seattle's three errors in Toronto's Game 6 win to stave off elimination

The Toronto Blue Jays have forced a deciding Game 7 with their 6-2 win over the Seattle Mariners in the penultimate contest of the 2025 American League Championship Series. That outcome means that the pennant will be decided back in Toronto on Monday night with a spot in the World Series against the Los Angeles Dodgers on the line.

With the chance to clinch the first ever World Series berth, many Mariners fans made the trip to Toronto hoping to witness history.