RSM Amateur winner Jeff Coburn (middle)

Theegala, of Chino Hills, three-putted the 10th hole, giving way to Coburn, of Rancho Santa Margarita, to two-putt from 18 feet and claim the 13th annual tournament.

Coburn, the 2013 and 2014 Southern California Public Links winner, shot rounds of 71-70 en route to the weekend victory, though the Sunday 70 came with, at times, difficult playing conditions.

"That was ironically when I started playing well," Coburn said of the 30-minute period of rain during Sunday's round.

Coburn said it began raining on his 10th hole, a hole he birdied before parring 11 and making back-to-back birdies on 12 and 13.

Coburn played in the inaugural RSM Amateur 13 years ago, and says Tijeras Creek Golf Club is just as good now as it was back in 2002, but noted that the course is set up much more difficult now, yielding the three-under winner.

Taking third place was Mark Cobey, a CSU Fullerton golfer. The freshman from Woodland, Calif. shot 71-74.

The low round of the final day went to Cory Chavez, who after shooting 83 on day one shot the lowest round of the tournament by two shots — a 67 — to tie for tenth place.