CARLSBAD (California), Feb 25: Chad Campbell’s 1-up triumph over Tiger Woods on Friday was the most spectacular surprise on a day that saw a string of upsets at the WGC Accenture Match Play Championship.

Vijay Singh and Phil Mickelson were also eliminated from the 7.5 million-dollar tournament, as seven of the eight matches were won by the lower-seeded player.

Campbell got the ball rolling with his third-round victory over Woods, the top seed and a two-time winner of the event.

Woods had a chance to square the match on the 18th hole but he missed a 12-foot birdie putt characteristic, he said, of his day.

Woods had opened the tournament with a bang on Wednesday, his 9 and 8 rout of Stephen Ames the most lopsided victory in the event’s history.

On Thursday he had to work for a 1-up victory over Australian Robert Allenby.

Campbell, the 17th seed, won despite a bogey and a double-bogey.

Fiji’s Singh, meanwhile, bowed out when he bogeyed the first extra hole to hand Irishman Padraig Harrington a 1-up victory.

Englishman David Howell was too good for Mickelson, cruising to an emphatic 3 and 1 triumph.

In a dramatic comeback, Australian Geoff Ogilvy came from 4-down with four holes left to beat Canada’s former Masters champion Mike Weir 1-up with an eagle at the third extra hole.

In Saturday’s quarterfinals, Ogilvy will face Howell, Harrington will meet Davis Love, South African Retief Goosen will clash with Zach Johnson, while Campbell will meet Tom Lehman.

Scores

Third round

Bobby Jones Bracket

Chad Campbell (USA) bt Tiger Woods (USA) 1-up; Tom Lehman (USA) bt David Toms (USA) 4 and 3

Ben Hogan Bracket

Geoff Ogilvy (AUS) bt Mike Weir (CAN) 21 holes; David Howell (GBR) bt Phil Mickelson (USA) 3 and 1

Gary Player Bracket

Padraig Harrington (IRL) bt Vijay Singh (FIJ) 19 holes; Davis Love (USA) bt Chris DiMarco (USA) 3 and 2

Sam Snead Bracket

Retief Goosen (RSA) bt Luke Donald (GBR) 1-up; Zach Johnson (USA) bt Shingo Katayama (JPN) 4 and 3

Classic scores

TUCSON (Arizona): Leading second round scores here on Friday in the Classic of Tucson:

132 - Duffy Waldorf 66-66

133 - Mark Wilson 64-69

134 - Jason Gore 68-66, Scott Gutschewski 67-67, Jerry Kelly 66-68, Bob Tway 68-66, Bubba Watson 67-67

135 - Jason Allred 67-68, Mark Brooks 71-64, Alex Cejka 67-68, Brian Henninger 68-67

136 - Carlos Franco 67-69, Ian Leggatt 70-66, Chris Riley 68-68, Heath Slocum 67-69

137 - Gavin Coles 67-70, Nathan Green 67-70, Mathias Gronberg (SWE) 68-69, Gabriel Hjertstedt 66-71, Jin Park 68-69

138 - Aaron Baddeley 69-69, Ryuji Imada 70-68, Trevor Immelman 68-70, Brendan Jones 68-70, Justin Rose 70-68, Camilo Villegas 70-68

139 - Daisuke Maruyama 68-71

140 - Henrik Bjornstad 71-69

New Zealand PGA scores

CHRISTCHURCH: Leading scores after the third round of the New Zealand PGA Championship at the Clearwater Golf Club (par 72) on Saturday:

206 - Jarrod Lyle 71-66-69

208 - Brett Rumford 69-68-71

210 - Paul Marantz 72-70-68, Kevin Stadler 71-69-70

211 - Scott Dunlap 75 70 66, Wade Ormsby 75 69 67, Paul Sheehan 73 70 68

212 - Ryan Armour 74-71-67, Adam Crawford 72-71-69, Dave Morland 73-70-69, Paul Gow) 74-67-71, Jason Dufner 67-74-71

213 - Chad Collins 73-73-67, Bob Heintz 75-68-70, Tom Gillis 72-70-71, Matt Hendrix 71-67-75

214 - Michael Long 72-72-70, Peter Senior 72-72-70, Mahal Pearce 72-72-70, Peter Fowler 72-72-70, Scott Gardiner 74-69-71, Fran Quinn 73-70-71, Aron Price 71-70-73, Johnson Wagner 75-66-73.—Agencies