There are four matches left on the course and unlike earlier in the day, these are all close -- at least for now.

Robert Karlsson has the biggest lead at 2 up through 11 holes with Hunter Mahan.

Everything else is within one, which includes a re-match of a match from last year between Lee Westwood and Nick Watney.

Watney leads 1 up through 15 holes -- despite the fact that Westwood has hit all 15 greens in regulation.

Likewise, Martin Kaymer is 1 up on Justin Rose through 13 holes, while Thomas Bjorn , who beat Tiger Woods on Thursday, is all square with Geoff Ogilvy as they play the 18th hole.