Through two rounds of play, James Drew and Rhein Gibson share the lead at 7-under-par for the tournament.
A group of six players are one stroke back of the lead.
2011 San Juan Open champion Ryan Dillon is in a tie for 14th with Notah Begay III, Will Strickler and Chris Parra at 3-under.
Begay shot a 66 on Wednesday after posting a 1-over 71 on Tuesday to get back in contention.
Missing the cut was San Juan Country Club assistant golf professional Ryan Franklin, who finished the tournament 16-over