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

1950s Music (as level 58, beat 32 players)    Mar 02 11 - 9:45 PM
1970s Music (as level 59, beat 34 players)    Apr 21 11 - 1:45 PM
1980s Music (as level 61, beat 62 players)    Oct 29 11 - 4:45 AM
20th & 21st Centuries (as level 58, beat 35 players)    Mar 03 11 - 11:45 AM
Africa (as level 61, beat 14 players)    May 16 12 - 7:45 PM
African Countries A - Z (as level 57, beat 26 players)    Jan 13 11 - 12:45 PM
Astronomy (as level 55, beat 22 players)    Dec 29 10 - 8:45 PM
Australia (as level 35, beat 41 players)    Feb 24 09 - 12:45 PM
Australian Music (Champion Division, beat 14 players)    May 11 11 - 6:45 AM
Birth and Stage Name (as level 57, beat 45 players)    Jan 05 11 - 3:45 AM
By The Numbers (as level 56, beat 44 players)    Dec 30 10 - 12:45 PM
Cities of the World (as level 36, beat 53 players)    May 30 09 - 4:45 AM
Classic Movies (as level 58, beat 44 players)    Mar 23 11 - 9:45 PM
Cultures (as level 28, beat 56 players)    Nov 05 08 - 11:45 AM
Death Becomes Them (as level 61, beat 114 players)    Oct 13 12 - 11:45 PM
Famous Dates (as level 60, beat 26 players)    Aug 03 11 - 7:45 PM
Famous Women (as level 61, beat 19 players)    May 16 12 - 6:45 PM
Flags and Symbols (as level 46, beat 20 players)    Apr 15 10 - 12:45 PM
Literature Before 1900 (as level 35, beat 33 players)    Mar 21 09 - 3:45 AM
Mixed 25 Questions (as level 28, beat 49 players)    Nov 11 08 - 5:45 AM
Mixed 5 Questions (as level 32, beat 42 players)    Dec 16 08 - 5:45 AM
Mixed People (as level 35, beat 69 players)    Apr 18 09 - 4:45 AM
Music by Year (as level 38, beat 45 players)    Jul 11 09 - 4:45 AM
Music Celebs Mixed (as level 38, beat 37 players)    Jul 25 09 - 7:45 AM
Music Grab Bag (as level 60, beat 27 players)    Jun 16 11 - 1:45 PM
Name Game (as level 36, beat 33 players)    Jun 06 09 - 3:45 AM
Name the Artist (as level 60, beat 44 players)    May 31 11 - 7:45 AM
Name the Movie (as level 60, beat 39 players)    Jun 08 11 - 9:45 PM
Names in Songs (as level 60, beat 26 players)    Aug 06 11 - 7:45 AM
Oceania (as level 61, beat 44 players)    Feb 25 12 - 3:45 AM
One Hit Wonders (as level 58, beat 92 players)    Apr 16 11 - 5:45 AM