World Rally Championship | Waterford | 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 | hurling | 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 | County Waterford | 2010 FIBA World Championship | IMSA GT Championship | European Touring Car Championship | European Championship | World Snooker Championship | PGA Championship | 2010 IIHF World Championship |
At club level Greene enjoyed a successful career with Mount Sion, winning a Munster club winners' medal and eight county club championship winners' medals.