Stan840 has won Who's the Expert games in the following categories:

Cities of the World (as level 24, beat 31 players)    Mar 15 10 - 4:45 PM
Earth Science (as level 34, beat 21 players)    May 03 12 - 12:45 PM
Nostalgia (as level 17, beat 33 players)    Sep 22 09 - 12:45 PM
Roads & Highways (as level 34, beat 13 players)    Jul 07 12 - 12:45 PM
U.S. Presidents (as level 33, beat 15 players)    Nov 20 11 - 3:45 PM