Clarke progresses to one under par

US Open Leaderboard

4 under - Justin Leonard (after 18 holes)

Jay Don Blake (18)

Brett Quigley (15)

3 under – Stephen Leaney (Aus) (18)

Robert Damron (15)

2 under – Ian Leggatt (Can) (18)

Tom Gillis (18)

Mark Calcavecchia (18)

Len Mattiace (9)

Tom Watson (9)

Others:

1 under – Ernie Els (Rsa) (18)

Sergio Garcia (Spa) (10)

Darren Clarke (Nir) (13)

Level – Tiger Woods (18)

Justin Rose (Gbr) (18)

1 over – Brian Davis (Gbr) (15)

3 over – Paul Lawrie (Gbr) (13)

4 over – Nick Faldo (Gbr) (10)

6 over – Paul Casey (Gbr) (12)