2nd worst moment: Smacked by the Athletics on Sep 14
After the first game of a doubleheader on September 14th the Mariners were 22-25 and just a game back of the 23-24 Houston Astros who would be the eventual final team in the playoffs at 29-31. Seattle was on a 14-6 run over their last 20 games and despite trading Austin Nola and multiple bullpen pitchers, they had a chance.
However, it all seemed to fall apart in a 9-0 defeat at home against the Oakland Athletics. Seattle was held to two hits in the shoutout and it really did feel like after all the momentum that the Mariners had it was clear facing a playoff team that they were not on that playoff level.
Since the game was only 7 innings long due to the 2020 doubleheader rule, the Mariners only threw out three pitchers and all three were members of the Mariners’ poor bullpen. Seth Frankoff took the biggest blow allowing 5 runs in just 1.2 innings.
It could’ve been worse however if it weren’t for Kyle Lewis making the catch of the year robbing a grand slam with two outs in the first inning. The Mariners would go on to lose their next three games and would finish the season on a 5-8 run over their last 13 after that great 20 game stretch.