Michael Feagles made a left-to-right, curling 30-footer for birdie on his final hole Thursday to shoot 59 at the BMW Charity Pro-Am.
It marked the ninth sub-60 round all time on the Korn Ferry Tour and the second this year.
Mac Meissner shot 59 in April's Lecom Suncoast Classic. Prior to that, no one had broken 60 on tour since 2017. The lowest score ever recorded on the KFT is a 58 by Stephan Jaeger at the 2016 Ellie Mae Classic.
Feagles had never shot better than 64 in his KFT career, which includes 33 previous starts.