Some of these leagues do not allow existing wrestlers to transfer in with their win-loss records. Managers who wish to join these leagues must create a brand new wrestler.

AMERICAN LEAGUES

The champions of these leagues battle for the IWA American Championship at the end of every cycle.

• AAL (Atomic Age League) - Jade Federation
• ASL (All Star League) - Gold Federation
• BRL (Battle Royal League) - Gold Federation; managers are limited to a maximum of 6 wrestlers in this league
• LOL (Lights Out League) - Diamond Federation
• OSL (Old School League) - Steel Federation
• SAL (Soul Asylum League) - Bronze Federation
• TCL (Torture Chamber League) - Bronze Federation
• XPL (Xtreme Poison League) - Iron Federation; managers are limited to a maximum of 6 wrestlers in this league

ASIATIC LEAGUES

At the end of each cycle, the champions of these leagues compete for the IWA Asiatic title.

• CFL (Coffin Filler League) - Bronze Federation
• CSL (Center Stage League) - Iron Federation; the match results for this league are only available on-line; commissioners work together on a league "magazine"
• ECL (Evil Clown League) - Diamond Federation
• JDL (Jade Dragon League) - Jade Federation
• MEL (Main Event League) - Bronze Federation
• NAL (Non-stop Action League) - Diamond Federation; each cycle, the manager of the league champion receives a cash prize; managers must be at least 18 years old to participate; managers are limited to a maximum of 10 wrestlers in this league
• NBL (New Blood League) - Steel Federation
• NDL (Ninja Dojo League) - Gold Federation

HARDCORE LEAGUES

The champions of these leagues fight it out for the IWA Hardcore title.

• ALL (Arm Lock League) - Diamond Federation
• BOL (Black Ops League) - Gold Federation; managers may not transfer wrestlers with more than 100 wins over losses into this league; managers are limited to a maximum of 4 wrestlers in this league
• DDL (Dark Days League) - Diamond Federation
• GRL (Grim Reaper League) - Bronze Federation; managers are limited to a maximum of 6 wrestlers in this league
• HWL (Hardcore Wrestling League) - Iron Federation
• LSL (Louisiana Swamp League) - Steel Federation
• PKL (Psychotic Killer League) - Jade Federation; managers are limited to a maximum of 6 wrestlers in this league
• TDL (Texas Death League) - Gold Federation

LADIES' LEAGUES

Champions in the following female-only leagues compete for the IWA Ladies' titles, such as Ladies' World Champion and Ladies' National Champion.

• FFL (Femme Fatale League) - Diamond Federation
• LLL (Lovely Ladies League) - Jade Federation
• MDL (Mystic Diva League) - Gold Federation
• VVL (Vicious Valkyries League) - Steel Federation

ROOKIE LEAGUES

Managers may not create new wrestlers or transfer existing wrestlers into these leagues without permission from both the league commissioner and IWA Management.

• AWL (American Wrestling League) - Steel Federation
• NWL (National Wrestling League) - Gold Federation

OTHER LEAGUES

• EPL (Extraordinary Power League) - Gold Federation; this league is based on Lucha Libre wrestling, and is open to both male and female wrestlers
• ESL (East Side Wrestling League) - Steel Federation; managers are limited to a maximum of 5 wrestlers in this league; stable initials are not allowed in this league
• IIL (Intense Impact League) - Steel Federation; this league features all types of wrestlers, such as lightweights, heavyweights, female grapplers, and little people
• LWL (Lone Wolf League) - Jade Federation; managers in this league pay just $10 per cycle for matches against all 10 regional champions and the 10 lowest-ranked wrestlers, plus 5 matches against the opponents of their choice and an entry into the battle royal; the league champion earns $10 IWA credit toward the following cycle, and the TV champion earns 5 free matches; if there are more than 30 active wrestlers, those prizes double; managers are limited to having only 1 wrestler in this league; wrestlers are not allowed to transfer into this league
• MRL (Mid-Atlantic Region League) - Steel Federation; wrestlers in this league are based on professional wrestlers from the 1980's; wrestlers are not allowed to transfer into this league; to download a rule book created by the commissioners, right click HERE and choose "Save Target As..." (you will be downloading a PDF file with a size of 512K)
• PRL (Primal Rage League) - Jade Federation; managers are limited to a maximum of 10 wrestlers in this league
• SHL (Super Hero League) - Jade Federation; each cycle, the manager of the league champion wins a comic book
• UEL (Union Express League) - Gold Federation; managers are limited to a maximum of 6 wrestlers in this league
• UWL (Unknown Wrestler League) - Bronze Federation; wrestlers in this league are identified only by a number, and actually belong to another league; managers don't know who they have been fighting against until their opponent is eliminated from the league; wrestlers may not transfer into this league, and it is no longer open to new members
• WFL (Wrestling Federation League) - Iron Federation; wrestlers in this league are based on WWF wrestlers from 1985 to 1995; managers are limited to a maximum of 6 wrestlers in this league; wrestlers are not allowed to transfer into this league; to download a rule book created by the commissioners, right click HERE and choose "Save Target As..." (you will be downloading a PDF file with a size of 2.1MB)
• WWL (World Wrestling League) - Jade Federation; wrestlers in this league mimic professional wrestlers of past and present eras; stable initials are not allowed unless they are league-based; wrestlers are not allowed to transfer into this league unless they change their names to those of real-life wrestlers; all types of wrestlers are allowed from any wrestling promotion
• YGL (Young Guns League) - Diamond Federation; managers are limited to a maximum of 5 wrestlers in this league; wrestlers are not allowed to transfer into this league
• ZHL (Zombie Hunter League) - Bronze Federation; managers may not transfer wrestlers with more than 100 wins over losses into this league