Deion Sanders' Buffaloes blew a 29-point halftime deficit during overtime loss to Cardinal
It was the largest blown lead in Colorado history .
Safety Alaka'i Gilman intercepted a floated pass from Shedeur Sanders in the end zone to set the stage for Karty, who connected on a 46-yard kick with no time left in regulation.
The Cardinal (2-4, 1-3 Pac-12) rallied from a 29-0 halftime deficit with quarterbacks Justin Lamson and Ashton Daniels unable to spark a spark.
Colorado committed 17 penalties for 127 yards in a game that started at 8:20 pm local time and ended at 12:21 am local time.