I"ve had a bunch clear at 24 hrs of late, but this one ... SEA-OAK 11/19 -- First flight of the morning, they cleared 14/16 seats at T-1 h and I can tell you, not everyone in the cabin was a 75K.
I am continually shaking my head, glad that I have row 6 reserved. Happy to have a hard boiled egg and an apple for each flight, because one never knows if you are going to clear or not any more.