Casey shoots 27 on back nine en route to 63

IRVING, Texas – You know things are going nicely when a lone 4 is your worst score for nine holes.

That was the case for Paul Casey during his second round of the Byron Nelson Championship, as he shot back-nine scores of 3-3-4-2-3-3-3-3-3. Add ‘em all up and it’s a 27.

“Walking off 18, [my caddie] was struggling to add it up,” he said. “Par-35 threw him. He said, ‘I think that’s 28.’ Genuinely I had no concept of what I was doing out there.”

It tied seven other players for the second-lowest nine-hole score in PGA Tour history. Corey Pavin posted a 26 on the front nine of the 2006 U.S. Bank Championship opening round.

Asked whether he’s ever shot 27 for nine holes before, Casey answered, “On par-3 courses, I think.”

Paired with an opening-nine 36, Casey’s 63 got him into contention going into the weekend.