Mark Calcavecchia won the Pods Championship in a dramatic finish on Sunday.

The 1989 Open champion thought he was heading to a play-off after missing a seven-foot par putt at the final hole, but Heath Slocum missed a four-footer moments later to hand victory to the shocked 46-year-old.

"I never expected him to miss that," said Calcavecchia, who shot 70 to finish at 10-under, 274, one shot ahead of Slocum (71) and fast-finishing Australian John Senden (66) at Innisbrook.

It is Calcavecchia's 13th PGA Tour victory, worth US$954,000 (£493,313), 10 per cent of which will go to caddie Eric Larson, who was released from prison last year after serving nearly 11 years for selling cocaine.

Calcavecchia took a one-shot lead to the par-four 18th, but came up short in long rough with his approach shot, before hitting a poor chip.

Still, he had an uphill putt for a certain victory.

He started his ball right of the hole, and watched in dismay as it failed to break.

Slocum then had a downhill putt for force a play-off, but missed it left, and suddenly it was all over.

Collated final round scores and totals in the USPGA Tour PODS Championship, Westin Innisbrook Resort, Palm Harbour, Florida, United States

(USA unless stated, par 71):

274 Mark Calcavecchia 75 67 62 70

275 John Senden (Aus) 69 71 69 66, Heath Slocum 68 69 67 71

276 Brian Gay 69 72 66 69, Lucas Glover 72 68 67 69

277 KJ Choi (Kor) 69 69 67 72, Charles Howell III 70 74 68 65

278 J.B. Holmes 72 68 69 69, Stephen Leaney (Aus) 69 67 72 70, Jonathan Byrd 69 69 72 68, Ryan Moore 69 71 68 70

279 Nathan Green (Aus) 70 72 70 67, Bart Bryant 71 69 69 70

280 Billy Andrade 69 70 69 72, Pat Perez 68 70 69 73, Anthony Kim 67 73 68 72, Zach Johnson 71 71 66 72, Jason Bohn 69 70 70 71

281 Chris DiMarco 69 69 69 74, Eric Axley 71 72 69 69, Bubba Watson 71 71 69 70, Kenny Perry 73 69 72 67, Dean Wilson 72 70 68 71, Vijay Singh (Fij) 70 70 72 69, John Rollins 74 68 70 69, Frank Lickliter II 70 73 68 70

282 Will MacKenzie 71 72 70 69, Charley Hoffman 72 69 67 74, Daniel Chopra (Swe) 67 71 73 71, Paul Goydos 71 69 69 73, Jeff Gove 70 70 71 71, Bo Van Pelt 71 72 73 66, Peter Lonard (Aus) 71 72 71 68

283 Arron Oberholser 67 72 75 69, Ryan Palmer 72 70 73 68, Rich Beem 73 69 67 74, Cliff Kresge 65 74 71 73

284 Tim Herron 73 71 68 72, Jeff Quinney 69 71 71 73, Ken Duke 71 72 71 70, Douglas Labelle 67 71 74 72, Mark Wilson 69 71 70 74

285 Charlie Wi (Kor) 72 69 70 74, Trevor Immelman (Rsa) 69 72 71 73, Cameron Beckman 71 69 72 73, Chris Couch 70 71 70 74, Tom Lehman 69 73 73 70

286 Nick Watney 71 71 70 74, Brian Davis (Eng) 72 68 72 74, Brad Faxon 70 74 73 69, George McNeill 70 70 76 70, Vaughn Taylor 70 68 71 77, Briny Baird 71 71 68 76, Brandt Snedeker 69 75 68 74, Jesper Parnevik (Swe) 68 75 71 72

287 J J Henry 72 68 75 72, David Branshaw 71 73 72 71, Johnson Wagner 72 70 69 76

288 Kirk Triplett 74 67 76 71, Sergio Garcia (Spa) 70 71 74 73, Joey Sindelar 68 75 73 72, Joe Ogilvie 70 72 75 71

289 Woody Austin 70 73 71 75, D.J. Trahan 73 71 73 72

290 Shaun Micheel 72 71 73 74, Michael Putnam 70 73 72 75, Gavin Coles (Aus) 70 71 72 77

291 Camilo Villegas (Col) 68 73 75 75, Glen Day 71 73 74 73, Bob Heintz 75 69 73 74, Troy Matteson 70 73 74 74, Shigeki Maruyama (Jpn) 73 71 74 73

292 Richard S Johnson (Swe) 73 71 76 72

293 Dudley Hart 71 73 77 72, Ryan Armour 69 73 75 76, Mark Hensby (Aus) 72 71 77 73