The Mariners have hosted the Salmon Run —a mascot race around the warning track—at every home game at T-Mobile Park since the start of the 2024 season. Like many mascot races, the Salmon Run includes a lovable loser, who earns their status as a crowd favorite despite never coming in first. In Seattle, that’s Humpy.

Harrell said the proclamation celebrates Humpy the salmon, the underdog mascot of the Mariners’ in-game “Salmon Run” race.

The Mariners' beloved loser-no-more salmon mascot Humpy will be honored Thursday ahead of the ALCS Game 4 against the Toronto Blue Jays.

With ALCS Game 3 against Toronto falling on a Wednesday, many fans took work and school off to try to help cheer the Mariners over the hump of the 7-game series.

If you had gone to every Seattle Mariners regular season home game over the last couple of years, you would have seen that only one participant lost every contest, 167 times. That losing streak broke in a big way last Friday night in the 15th inning of the incredibly tense Game 5 of the American League Division Series.

ALDS Game 5 will be remembered forever in the Pacific Northwest for reasons too numerous to count. Jorge Polanco’s series-winning, demon-shushing, walk-off single in the 15th inning certainly takes the cake. But Humpy’s moment of glory, which provided an understandably exhausted crowd with a galvanizing burst of energy, has made waves as well.