Matt Bettencourt and Mark Wilson lead the field after the third round of the Memorial Tournament but three-time champion Tiger Woods is ominously poised four shots off the pace.

Bettencourt, who has managed only one top-25 finish on the PGA Tour, shot a four-under-par round of 67 at Muirfield Village Golf Club today to move to nine under.

Wilson bogeyed the first three holes but recovered impressively from that nightmare start, posting seven birdies and only one bogey for a round of 69.

American pair Jonathan Byrd and Jim Furyk are a shot back after rounds of 71 while the score of the day came from Australian Geoff Ogilvy, who recorded nine birdies and no dropped shots in a brilliant 63 to climb to seven under.

That was the same mark as Davis Love III, who carded a 69.

Woods, who is continuing his comeback after knee surgery, made steady progress throughout the day after bogeying the first hole.

He birdied the second and fifth and moved to four under with an eagle at the par-five 11th. Two more birdies followed but a bogey at the 17th for a 68 took the gloss off somewhat.

That left Woods tied on five under with Matt Kuchar, Michael Letzig and Ernie Els, who carded a one-under 71.

First-round leader Luke Donald stayed just about in contention with a level-par 72 - much better than yesterday's 76 but still some way off his stunning 64 on Thursday.

That left the Englishman in a tie for 11th with Stewart Cink and Bubba Watson.

World number three Paul Casey's chances disappeared with a 75, putting him 11 shots off the lead on two over, two better than Ian Poulter.

Collated second round scores & totals in the USPGA Tour The Memorial Tournament, Muirfield Village GC, Dublin, Ohio, United States of America

207 Matt Bettencourt 71 68 68, Mark Wilson 68 70 69

208 Jim Furyk 67 70 71, Jonathan Byrd 69 68 71

209 Davis Love III 72 68 69, Geoff Ogilvy (Aus) 72 74 63

211 Michael Letzig 72 70 69, Tiger Woods 69 74 68, Ernie Els (Rsa) 70 70 71, Matt Kuchar 73 67 71

212 Stewart Cink 68 72 72, Luke Donald (Eng) 64 76 72, Bubba Watson 71 71 70

213 Dustin Johnson 73 68 72, Hunter Mahan 74 69 70, Steve Marino 68 72 73, Mike Weir (Can) 69 69 75, Chris DiMarco 73 67 73, Ryuji Imada (Jpn) 70 69 74, Troy Matteson 69 73 71

214 Rodney Pampling (Aus) 69 71 74, Daniel Chopra (Swe) 72 69 73, Ben Curtis 71 71 72, Alex Cejka (Ger) 73 68 73

215 K J Choi (Kor) 73 70 72, Jason Day (Aus) 67 73 75

216 Jeff Overton 76 69 71, Lucas Glover 75 69 72, Kevin Na 71 72 73, Jose-Maria Olazabal (Spa) 74 74 68, Will MacKenzie 70 73 73, Robert Allenby (Aus) 72 76 68, Mathew Goggin (Aus) 73 73 70, Reinier Saxton (Ned) 69 75 72, D.J. Trahan 73 74 69

217 Steve Stricker 70 74 73, Charl Schwartzel (Rsa) 72 68 77, Kevin Sutherland 69 75 73, Webb Simpson 73 71 73, Chez Reavie 71 74 72

218 Paul Casey (Eng) 73 70 75, Nick Watney 73 71 74, Marc Leishman (Aus) 74 74 70, Woody Austin 75 70 73, Steve Lowery 76 71 71, Camilo Villegas (Col) 71 74 73, Tom Pernice Jnr. 71 74 73

219 Jerry Kelly 72 72 75, Charley Hoffman 71 72 76, Zach Johnson 71 73 75, John Senden (Aus) 71 74 74, Tom Lehman 71 74 74, David Duval 71 74 74, Martin Kaymer (Ger) 71 76 72, Johnson Wagner 69 74 76, Y.E. Yang (Kor) 73 72 74, Richard Sterne (Rsa) 74 71 74

220 Kenny Perry 72 73 75, D.A. Points 75 70 75, George McNeill 76 69 75, Lee Janzen 72 73 75, Ian Poulter (Eng) 75 71 74

221 Erik Compton 72 75 74, Jeff Quinney 75 72 74, Ted Purdy 67 79 75

222 Steve Flesch 73 75 74, Nick O'Hern (Aus) 73 73 76, Nicholas Thompson 69 75 78, Stuart Appleby (Aus) 72 74 76

223 Bill Haas 74 72 77, Marc Turnesa 72 73 78

224 Tim Herron 75 73 76, Mark Brooks 75 73 76, Rocco Mediate 73 70 81

225 Brett Quigley 74 73 78

226 Jeff Klauk 76 71 79

230 Scott McCarron 74 74 82