Josh Kerr called his shot back in March — a bid to run the fastest mile in history and break one of the longest-standing world records in men’s track.

As running records tumbled left and right in the era of the super shoe, one mark had remained stubbornly in place.

“It’s a very calming sensation, a trigger,” Kerr, 28, said. “As soon as it happens, it is my body telling me everything I don’t need is shutting off, and I’m going to get to the line as quickly as pos...