Tom Watson shot a 66 yesterday morning in the first round of the Senior Players Championship in Dearborn, Mich., then said he wouldn't be surprised if he lost his lead.

About an hour later, he did.

Graham Marsh took the lead with an 8-under 64 -- bogeying 18 to miss tying the course record -- at the Champions Tour's second major.

"There would be days you could shoot a 64 and you'd walk off the golf course and say it's the best round of golf you've ever played," said Marsh, who hadn't shot a 64 since 1999. "Today, I wouldn't say that.

"Everything was in the golfer's favor this morning. No wind. Perfect weather. Greens, superb condition. What more could you ask for?"

The field of 78 proved that, averaging 70.96, a first-round record at The TPC of Michigan.

Isao Aoki, Ron Streck and Watson were two shots off the lead while Dana Quigley, Jim Ahern and Wayne Levi shot 67 and were three behind Marsh. Hale Irwin was in a pack of nine at 68.

Quigley endured a hip ailment well enough to put together a solid round, extending his playing streak to 264 consecutive events -- 278 in a row when eligible.

Defending champion Mark James, an Englishman, shot a 2-under 70 on the day terrorists' bombs tore through London.

"These things are a part of modern life and we'll have to live with them," James said. "It's a horrendous thing."

* EUROPEAN: Phil Mickelson shot a 4-under 67 in the Scottish Open in Luss, Scotland, leaving him three strokes behind first-round leaders Angel Cabrera and Stuart Little in the final event before the British Open next week at St. Andrews.

Lee Westwood was in a group at 65, and U.S. Ryder Cup captain Tom Lehman was another stroke back at 66. Ernie Els, the 2000 and 2003 winner, opened with a 70 on the Loch Lomond course, and Retief Goosen shot a 71.

* LPGA: U.S. Women's Open champion Birdie Kim shot a 6-under 65 -- her LPGA Tour best -- for a share of the first-round lead with Becky Morgan in the Jamie Farr Owens Corning Classic in Sylvania, Ohio.

Angela Stanford and Gloria Park opened with a 67, and defending champion Meg Mallon, Young Kim and Jeong Jang had 68 on the Highland Meadows course.

Brittany Lang shot a 69 in her pro debut, and 17-year-old Morgan Pressel had a 71. Lang and Pressel tied for second in the U.S. Women's Open.

Tom Watson smiles after his birdie putt on No. 15 in the first round of the Senior Players Championship.