Kevin Streelman figured a good round Saturday would at least get him in the mix at the Tampa Bay Championship in Palm Harbor, Fla.
It wound up giving him a share of the lead.
Adam Scott and K.J. Choi led a surprising retreat at Innisbrook, allowing for a wild game of musical chairs at the top of the leaderboard with nothing remotely close to being settled going into the final round. Sixteen players were separated by only three shots.
Streelman finished his 6-under-par 65 nearly three hours before the last group walked off the 18th green. Justin Leonard (67) ran off four birdies in a five-hole stretch around the turn and had the lead to himself before a bogey from the bunker on the 15th. George Coetzee (68) bounced back from his lone bogey with a birdie on the rowdy 17th hole, where Hooters waitresses serve wings in the grandstands.
They were tied at 6-under 207, more evidence that the Copperhead course is perhaps the most complete test in Florida. Even on a warm, breezy afternoon, it was easier to go backward than to move away from the field.
‘‘I wanted to get to 6 under today,’’ Streelman said. ‘‘I had that number in my mind to at least have a chance going into tomorrow, so I was happy to get there.’’
Scott had a two-putt birdie on the opening hole to briefly take the lead, and that was the highlight of his day. He three-putted from about 15 feet for bogey on third, made bogey with a wedge in his hand on the par-5 fifth hole and stumbled to a 76. Choi, who also was one shot out of the lead, didn’t make a birdie in his round of 76.
They still were only five shots out of the lead.
Shawn Stefani, the 31-year-old rookie who led by one, had a 74 and still was only two shots behind. His day could have been much worse except for a tee shot that caromed off a tree and into the fairway on the second hole, and a big hook on the third that hit the tire of a golf cart and stayed in play. Instead of hitting his third shot from the tee, he could reach the green for a two-putt par.
The group one shot out of the lead included 2010 winner Jim Furyk (67) and Ben Kohles (69).
Defending champion Luke Donald had a 67 and was only two shots behind at 4-under 209, along with 19-year-old Jordan Spieth.
The group at 3 under included Harris English, in a tie for the lead on the front nine until he stumbled to a 73, and Sergio Garcia, who never looked happy on his way to a 72.
LPGA — Ai Miyazato made three birdies in a four-hole stretch on the back nine and saved par with a long putt on the par-4 finishing hole to take a two stroke lead over Stacy Lewis in the LPGA Founders Cup in Phoenix.
The Japanese star shot her second straight 5-under 67 after opening with a tournament-record 64 and stands at 19-under 197.
Lewis birdied the last hole for a 66 in cooler conditions on the cactus-lined course. After two days in the low-90s, it only reached the mid-80s on Saturday at Desert Ridge’s Wildfire layout.
The third-ranked Lewis, coming off a victory two weeks ago in Singapore, is in position to take the top spot in the world from Yani Tseng with a win Sunday, as long as Tseng — tied for 63d at 2 under after a 72 — finishes third or worse.
Champions — David Frost maintained a one-stroke lead over Fred Couples in the Toshiba Classic in Newport Beach, Calif., eagling the final hole for a 5-under 66.
After opening with a 63, Frost had a 13-under 129 total. The South African made an 18-foot putt for the eagle on the par-5 18th, while Couples two-putted from 35 feet for birdie and a 66 of his own.
European — Thomas Aiken shot a 10-under 62 to lead in the Avantha Masters in Greater Noida, India, by three shots after three rounds. He had eight birdies and an eagle to total 18-under 198 to move ahead of Liang Wenchong (69).