Official Sport's Threads:
Badminton: http://www.soompi.com/forums/index.php?showtopic=3500
Ballroom Dancing: http://www.soompi.com/forums/index.php?showtopic=60779
Bowling: http://www.soompi.com/forums/index.php?showtopic=7080
Cheerleading: http://www.soompi.com/forums/index.php?showtopic=97978
Color Guard: http://www.soompi.com/forums/index.php?showtopic=65553
English Premier League: http://www.soompi.com/forums/index.php?showtopic=5653
Fantasy Sports: http://www.soompi.com/forums/index.php?showtopic=97226
Fencing: http://www.soompi.com/forums/index.php?showtopic=58008
Formula One auto racing: http://www.soompi.com/forums/index.php?showtopic=3994
Golf: http://www.soompi.com/forums/index.php?showtopic=2926
Grappling: http://www.soompi.com/forums/index.php?showtopic=247632
Handball: http://www.soompi.com/forums/index.php?showtopic=2700
Kendo/Kumdo: http://www.soompi.com/forums/index.php?showtopic=162123
Korea Soccer Team: http://www.soompi.com/forums/index.php?showtopic=65871
Lacrosse: http://www.soompi.com/forums/index.php?showtopic=24918
Martial Arts: http://www.soompi.com/forums/index.php?showtopic=60302
MLB: http://www.soompi.com/forums/index.php?showtopic=284465
MLS: http://www.soompi.com/forums/index.php?showtopic=47828
NBA: http://www.soompi.com/forums/index.php?showtopic=1607
NCAA Basketball: http://www.soompi.com/forums/index.php?showtopic=99217
NCAA Football: http://www.soompi.com/forums/index.php?showtopic=95316
NFL: http://www.soompi.com/forums/index.php?showtopic=922
NHL: http://www.soompi.com/forums/index.php?showtopic=305
Skateboarding: http://www.soompi.com/forums/index.php?showtopic=60116
Snowboarding and Skiing: http://www.soompi.com/forums/index.php?showtopic=28795
Tennis: http://www.soompi.com/forums/index.php?showtopic=436
Track and Field: http://www.soompi.com/forums/index.php?showtopic=3785
US Soccer Team: http://www.soompi.com/forums/index.php?showtopic=109977
Volleyball: http://www.soompi.com/forums/index.php?showtopic=1706
Waterpolo: http://www.soompi.com/forums/index.php?showtopic=93011
2010 Winter Olympics: http://www.soompi.com/forums/index.php?showtopic=316080
Wrestling: http://www.soompi.com/forums/index.php?showtopic=461
Let me know if I miss any.