One man stands between Tiger Woods and the lead after Day 1 at the 112th U.S. Open.
Thompson, who needed just 22 putts en route to 66, was runner-up to Colt Knost at this venue in the 2007 U.S. Amateur.
Woods is joined in a tie for second with 2010 U.S. Open champion Graeme McDowell, David Toms, Justin Rose and Nick Watney. Watney made the third albatross in U.S. Open history on Thursday, holing a 5-iron from 190 yards at the par-5 17th to move from 3 over at the time to even.
The grouping featuring the top three players in the Official World Golf Ranking was a combined 19 over par on Thursday. Reigning U.S. Open champion and world No. 2 Rory McIlroy shot 77. World No. 1 Luke Donald shot 79, while Lee Westwood posted 73.