1946 72nd Annual Kentucky Derby

The transcript describes a horse race, highlighting the positions and actions of the horses and jockeys. It details the race's progression from the clubhouse turn to the backstretch, and finally to the stretch where Assault, ridden by Jackie Warren Mertins, wins the race. The victory is notable for breaking betting records, with Assault paying 8 to 1. The transcript concludes with the celebration in the winner's circle, marking Assault as the 72nd winner of the Derby.

How did the Derby break betting records?

What does the phrase '72nd winner of the run for the Roses' refer to?