Fabian Gomez of Argentina made four birdies on the back nine for a 7-under 65 that gave him a share of the lead with Scott Brown going into the final round of the Puerto Rico Open.
Brown, who tied for fifth in the Puerto Rico a year ago, had a 67 to join Gomez at 18-under 198. They were four shots clear of anyone else.
Gomez and Andres Romero battled for the until Romero took triple bogey on the par-4 10th and added three bogeys the rest of the way for a 73 that dropped him five shots behind.
Jordan Spieth made a hole-in-one on the 11th hole and had a 66, putting him in the group at 14-under 202 that included Blayne Barber, Steve LeBrun and Brian Stuard.