Jay Haas has been shooting his best or best in the last three years, he has never been on a stage like Thursday in the U.S. Senior Open.

Jay Haas settled from scratch and down in the soggy Saucon Valley and played much younger than his 68-year-old down the line,

sending 4-under 67 to share the lead with Mark Hensby after the opening round. Haas became the fifth player in U.S. history Senior Open shooting his age,

joining Tom Watson, Hale Irwin, Harold McSpaden and Jerry Barber, who did it nine times. Barber was the oldest winner of the 1961 PGA Championship.

"That's a great point to break (your age) in a lesson like this," said Jay Haas who had shot his age six times at the PGA Tour Champions, but did nothing great.

Jay Haas and Hensby were shot in front of Steve Stricker, Rocco Mediate, Paul Broadhurst and Tim Petrovic.

Even though the rain that hit Saucon Valley this morning left green even after it had subsided, only 11 players were able to shine.

These leaders have benefited from the recent start due to the heavy rain every morning which has made it difficult to keep the clubs dry.