Tony Mike Jr. chips on to the 18th green at the San Juan Open at San Juan Country Club in Farmington
Tony Mike Jr. chips on to the 18th green at the San Juan Open at San Juan Country Club in Farmington (Jon Austria/The Daily Times)

FARMINGTON — Day two at the San Juan Open saw scores rise as players attempted to put themselves in good position for the weekend rounds.

Riley Arp emerged as the tournament leader after shooting round of 5-under 66 on Friday at San Juan Country Club.

Arp sits at 11-under 131 at the halfway point of the event, moving to the top spot on the leaderboard after sitting in a tie for second place following an opening round 65.

The Fort Collins, Colo., native is one of about 30 professionals playing the tournament for the first time.

"I've always known about it, and I've always wanted to come play it," said the 25-year-old. "I don't know why I never have. It just never quite fit (in my schedule) or something like that. I'm very happy I was able to get here this year."

Arp said the key to his game has been his solid play from tee to green, and he is hoping to continue that heading into the weekend.

"I just need to continue doing what I'm doing, which is putting the ball in the fairway and hitting on the green," he said. "I haven't done anything special. I've made couple of 20-footers for birdie, but other than that, they've been two-putt birdies on the par 5s. I'm just keeping my ball out of trouble and trying to stay on the right side of the holes."

Arp leads the tournament by two shots over Jimmie Gunn after Gunn shot the low round of the day with a 6-under 65.

Gunn, a six-year veteran of the tournament, moved up from a tie for 15th into second place with the round.

"We had it quite nice this morning, there wasn't much wind," he said. "I just hit a lot better shots today and hit a couple of nice putts."

Gunn, who is originally from Scotland, but now resides in Mesa, Ariz., will rely on his past San Juan Open experiences as he heads into the weekend looking for his first title at the event.

"They're are a lot of good players in this field, and I've been in this position before," he said. "Just have to treat it like another day tomorrow."

While some players flew up the leaderboard, others, including first round leader Frank Apodaca, struggled during their second round.

Apodaca shot 5-over 76 after opening the tournament with a round of 7-under 64 for a two-day total of 2-under 140.

Jake Berkshire shot a round of 4-under 67 for the second straight day to sit in third place.

Clay Ogden, the 2010 champion, and 2012 runner-up Jesse Mueller are tied for fourth place at 7-under par, along with Zenon Brown, with two day totals of 135.

The tournament continues at 7 a.m. today. Following the third round, the professional field will be cut from 77 players down to the top 30 and ties.

Joshua Perry covers sports for The Daily Times. He can be reached at 505-564-4577 or jperry@daily-times.com. Follow him on Twitter @jperrysuu.