The '64 Phillies collapse was famous and talked about when I was growing up. They blew a 6 game lead with 12 to play. So blowing a 5.5 game lead with 11 to play would be remarkable enough, let alone a 15-game lead in the 2nd half of the season.
If tonight’s current results hold up, the Guardians and Mariners both will be on 10-1 runs. Would be a lot more relaxed if they both only gone 7-4 instead.