May was the co-chairman of the inaugural Insurance City Open (now the Travelers Championship) at the Wethersfield Country Club.
World Rally Championship | World Championship | NCAA Men's Division I Basketball Championship | Ultimate Fighting Championship | World Championship Wrestling | World Touring Car Championship | Six Nations Championship | County Championship | British Touring Car Championship | World Chess Championship | national championship | All-Ireland Senior Hurling Championship | Football League Championship | Extreme Championship Wrestling | Bowl Championship Series | Championship | All-Ireland Senior Football Championship | 2005 World Touring Car Championship season | The Open Championship | World Sportscar Championship | 2010 FIBA World Championship | IMSA GT Championship | European Touring Car Championship | European Championship | World Snooker Championship | PGA Championship | 2010 IIHF World Championship | World Colored Heavyweight Championship | Speedway World Championship | championship |
Williamson has no PGA Tour victories, although he has finished 2nd twice, both playoff losses – to Hunter Mahan at the 2007 Travelers Championship, and to Kenny Perry at the 2008 John Deere Classic.