The leaderboard after round 2:

1 Tiger Woods (USA) -12 F
2 Kevin Streelman (USA) -8 F
3 Stewart Cink (USA) -7 F
T4 Boo Weekley (USA) -6 F
T4 Brad Adamonis (USA) -6 F
T4 Aaron Baddeley (AUS) -6 F
T7 Stuart Appleby (AUS) -5 F
T7 John Senden (AUS) -5 F
T9 John Mallinger -4 F
T9 Hunter Mahan (USA) -4 F

TW 4 shots clear at the start of the weekend. Where did that come from??