| Claim to Notoriety | Umpire | Years Service |
| 1972 - Called a 3-2 Milt Pappas pitch ball four with Pappas one out from a perfect game. | |
| 1983 - Ruled Royals' George Brett out after Brett had hit a home run but used too much pine tar on his bat. | |
| 1985 - Ruled Royals' Jose Orta safe at first in Game 6 of the World Series. The incorrect call helped the Royals win the game 2-1. Kansas City then won Game 7 and the series. | |
| 1996 - Ruled a home run instead of fan interference on a Derek Jeter fly ball in Game 1 of the ALCS between the Orioles and Yankees. The Yankees won the game and series. | |
| 1997 - His large strike zone in Game 5 of the NLCS helped Marlins' Livan Hernandez strike out 15 batters in a 2-1 win over the Braves. | |
| 2005 - Ruled Angels' Josh Paul had not caught strike 3 in Game 2 of the ALCS, allowing A.J. Pierzynski to reach first. A pinch runner went on to score the winning run. | |
| 2003 - Named worst umpire by the players in a Sports Illustrated poll. Named the worst again in 2006 in SI, and again in a 2010 ESPN poll. | |
| 2009 - Ruled a Joe Mauer line drive foul in Game 2 of the ALDS between the Twins and eventual winner Yankees, although the ball had touched a Yankees player in fair territory. | |
| 2010 - Ruled Indians' Jason Donald safe on what should have been the 27th out of a perfect game. | |
| 2010 - Publicly called the length of Yankees and Red Sox games 'pathetic and embarrassing.' Later involved in controversial calls against the White Sox and Nationals. | |