Fernandez Valdes, 15, is at eight under par through eight holes and holds a five-stroke lead over Seth Reeves, who had completed five holes at Shoal Creek before storms moved in. Fernandez Valdes had finished with a 7-under-par 65 Monday and had led by three strokes over Reeves.
Among those who finished play Tuesday were Cameron Peck, Sam Smith and Justin Shin, who all shot a 2-under-par total of 142.
After making 10 birdies in his first round, Fernandez Valdes already has two more birdies to go with a bogey early in his second round, and he narrowly missed a third birdie from close range on his last hole of the day.
Peck bogeyed the last hole Tuesday to finish with a 1-over-par 73. Smith posted an even-par 72 and Shin finished with a 2-under 70, the second-best round of the day. The three were a stroke better than Julian Suri and Richard Werenski, who finished at 143.
They were the only five players who finished 36 holes under par out of the 78 players in the morning wave. Counting those still on the course, there are 11 players under par.
I just wanted to make the cut and I did that, said Peck, who lost his second round match a year ago. Im glad its over.
Defending champion Cory Whitsett is one of those still under par after a first-round 69. He has a 2-under total through four holes.