By Sean Martin, PGATOUR.COM
SAN MARTIN, Calif. -- The Frys.com Open has turned into a two-man race. Brooks Koepka and Jimmy Walker remain tied as they play the par-5 15th hole. They are at 16 under par, two shots clear of Kevin Na, Scott Brown and Vijay Singh.
Na and Brown are in the clubhouse after both shooting 64. Singh also is playing the 15th hole.
Koepka and Walker are both seeking their first PGA TOUR victories and first Masters bids. Koepka, 23, is making his fourth PGA TOUR start and first in a non-major. The Masters is the only major he hasn't played in. He played last year's U.S. Open as an amateur, then played in this year's The Open Championship and PGA Championship.
Walker has made 187 PGA TOUr starts, with one runner-up finish and two third-place finishes.