ProLeague
proleague.org
Counter-Strike series leagues organised by country. Prizes available.
ClanBase
clanbase.com
Includes results and contact information for competing clans.
Case's Ladder
casesladder.com
Parent site for multiple competitions, includes links to leagues in specific games.
Stronger than All
sta-league.org
Includes results, fixtures, forums, and config files for download.
Klanwars
klanwars.com
Includes forums, results, and Java IRC client.
Squad Games
squadgames.com
Includes forums, downloads, results and fixtures.
Clan Ladder
clanladder.com
Includes results, fixtures, and news.
Elite Clan Warfare
eliteclanwarfare.com
Playing spearhead, Call of Duty:United Offensive, and Counter-Strike:Source. Includes player/team statistics and downloads area.
National eSports League
nationalesportsleague.co.uk
Playing Joint Operations, Counter-Strike and Call of Duty.
Multiplayer Games League
mgleague.co.nz
Playing Day of Defeat, Half life and Counter Strike series games. Includes past results and news.
GlobalWarfighter League
mygwl.com
Ladders and tournaments. Includes downloads area and forums, subsribers gain access to clan management tools.
QuakeCon
quakecon.org
Annual event with multiple games. Site includes forum and gallery of previous years.
United Gaming Clans
ugcleague.com
Playing TFC and Counter-strike. Includes news, fixtures, results, forums, downloads and IRC chat.
Online Gaming League
worldogl.com
Includes forums, supported games list, and rules.
Total Assault Gaming
tagaming.com
Includes forums, results and fixtures.
WarLeagues
warleagues.com
Includes gallery, downloads, forum and competitor information.