Steve Stricker watches his tee shot on the 13th hole during the opening round of the U.S. Senior Open golf tournament Thursday at Warren Golf Course in South Bend, Ind.
Steve Stricker watches his tee shot on the 13th hole during the opening round of the U.S. Senior Open golf tournament Thursday at Warren Golf Course in South Bend, Ind.Michael Caterina/South Bend Tribune

Toms set a U.S. Senior Open record with 10 birdies, finishing with four in a row for a 29 on the back nine.

Stricker, coming off a playoff loss last week in the American Family Insurance Championship, played in the afternoon and rolled in a 35-foot putt for eagle on the par-5 17th hole. He narrowly missed a 15-foot birdie putt on the final hole.

Jerry Kelly, who won on the PGA Tour Champions event last week, and Kirk Triplett were at 64, one shot ahead of a group that included Vijay Singh.