Justin Leonard won the Worldcom Classic despite failing to pick up a birdie during his final round at the Harbour Town Golf Links.

Leonard also missed a one-foot putt on the back nine, but his 14-under-par total was still enough to beat Heath Slocum by one shot.

After carrying a three-stroke advantage into the final round, Leonard had 16 pars and two late bogeys en route to a two-over-par 73.

Slocum blew a one-stroke lead after double bogeying the 16th hole as the top-three finishers - including Phil Mickelson - failed to crack 70 on a windy day.

A seven-time winner on the PGA Tour, Leonard had never finished higher than 30th in four previous visits to Hilton Head.

Slocum began the day four shots off Leonard's pace but carded a 71 for second place, his best finish in 18 PGA Tour appearances. He missed the cut in seven of his first 10 starts this season.

Mickelson was one shot further back to match his third-place finish at last week's Masters, while Bernhard Langer was another stroke adrift.

Leading final round totals in the USPGA WorldCom Classic at Harbour Town, Hilton Head, South Carolina (Par 71, USA Unless stated)

270 Justin Leonard 67 64 66 73

271 Heath Slocum 67 68 66 70

272 Phil Mickelson 65 64 72 71

273 Bernhard Langer (Ger) 71 65 68 69

274 Davis Love III 62 69 72 71, Billy Mayfair 65 68 72 69, Scott Verplank 67 68 72 67

275 Angel Cabrera (Arg) 66 67 70 72, Glen Hnatiuk (Can) 68 71 66 70 (120,000 each)

276 Mark Calcavecchia 68 70 73 65, Len Mattiace 70 68 66 72, Frank Nobilo (Nzl) 72 69 69 66, Jeff Sluman 73 66 65 72, Craig Stadler 69 68 69 70

277 Carlos Franco (par) 68 67 72 70, David Frost (Rsa) 65 71 71 70, Jim Furyk 70 65 73 69, Tom Lehman 71 69 72 65

278 Billy Andrade 64 71 72 71, Woody Austin 72 68 68 70, Cameron Beckman 70 63 67 78, Ernie Els (Rsa) 71 67 73 67, Sergio Garcia (Spa) 70 72 66 70, Charles Howell III 68 71 66 73, Nick Price (Zim) 69 71 70 68