The only reason it wasn't an even earlier blowout was because Ian Poulter, who started the final round six shots behind, made six birdies through seven holes. He faltered with three straight bogeys on the back nine and had to settle for a 69.
For much of the back nine, McIlroy was competing only with his own lofty standards — and in the end, with Nicklaus' record.
"It's nice to break a record like that, especially of Jack Nicklaus, who is the most successful player of all-time so far," McIlroy said. "Yeah, it's a nice achievement."