Not all PGA Tour events are scheduled for four rounds (72 holes). A few are five rounds (90 holes). Here are the best PGA Tour scoring performances over 90 holes:
- 324 - Joe Durant (65-61-67-66-65), 2001 Bob Hope Chrysler Classic
- 325 - Tom Kite (67-67-64-65-62), 1993 Bob Hope Chrysler Classic
- 327 - John Cook (66-69-67-62-63), 1997 Bob Hope Chrysler Classic
