David Frost had three eagles to tie John Cook for the first-round lead in the PGA's five-day Las Vegas Invitational.

Frost twice holed out from off the green in a round of 64 at the Las Vegas Country Club. The three eagles tied the PGA Tour record held by Bruce Lietzke and Howard Twitty.Jim Benepe and Morris Hatalsky were a stroke behind at 65. Lon Hinkle, Ken Green, Loren Roberts and Tim Simpson were at 66.