Texas A&M-Corpus Christi volunteer assistant golf coach Phil Blackmar won his first-ever PGA Champions Tour title winning the AT&T Championship at Oak Hills Country Club in San Antonio by one shot on Sunday.

Blackmar carded birdies on five of his first six holes on Sunday en route to a 7-under 64 edging Jay Haas, Tom Kite and Andy Bean by a single stroke. After opening with a 1-over 72, worked his way back into contention with a 4-under 67 in the second round. The 6-7 Blackmar was five shots in back of co-leaders Russ Cochran and Andy Bean entering the final 18 holes.

The Islander assistant and husband of Islander head coach Carol Blackmar, finished at 10-under for the tournament. With win, Blackmar jumped 27 points in the Charles Schwab Cup standings claiming the 30th and final spot for the season-ending Schwab Cup in Sonoma, Calif. He earned $255,000 as well with the win and a one-year exemption on the Champions Tour.

"I'm very excited, and caught off guard with this victory," said Blackmar. "It's been a long year but this goes to show that perseverance pays off."

Blackmar won three titles as a member of PGA Tour and needed a strong showing to avoid qualifying school.

"Having to finish in a certain spot in the tournament to avoid qualifying and playing well enough to win is pretty unbelievable, I got nervous on the back nine but kept my composure and saved par a few times to hold on," said Blackmar.