Major League Baseball | National Football League | National Register of Historic Places | National Hockey League | ATP International Series | 2012 | 2012 Summer Olympics | World Series | 2012 ATP Challenger Tour | England national football team | UEFA Champions League | National Basketball Association | Premier League | National Science Foundation | National Geographic | Australian Football League | rugby league | Major League Soccer | National Trust | World Series of Poker | ATP International Series Gold | National Endowment for the Arts | National Geographic Society | Argentina national football team | Star Trek: The Original Series | National Trust for Places of Historic Interest or Natural Beauty | National Park Service | National League | League of Nations | ATP World Tour 250 series |
He has officiated in the 2004 All-Star Game and three Division Series (2005, 2011, 2012).