2008 - Top 5 Hardest Courses/Tournaments on the US PGA Tour

Based on the average score in relation to par in the tournaments hosted on them, these were the toughest courses on the US PGA Tour:

1. Royal Birkdale (British Open)
2. Oakland Hills (US PGA)
3. Torrey Pines (US Open)
4. TPC Southwind (Standford St. Jude)
5. Muirfield Village (Memorial)
   

Granted, the weather played a part in some tournaments (e.g. British Open), but hopefully a useful list all the same. Unsurprisingly, it is top heavy with major tournaments. You can get more detailed information by looking at the 'Highest Average Round vs Par' chart on the 'View Options/Tourn. Stats' page (US Tour, 2008 season) in the member section of Golf Predictor. Click on the "Lists" category opposite to see more such lists.