9 - Arena Ruleset
- 9.1 - Teams are required to play with six players.
- 9.1.1 - Teams may choose to play with five players if they are unable to have six. Check 4 - Match Rules for ringer/merc specifics.
 - 9.1.2 - Teams can have a maximum of two ringers/mercs in a match. Following teams cannot use the same ringers/mercs in multiple matches during playoffs.
 
 - 9.2 - Teams can only have a maximum of nine players on the active roster at a time.
 - 9.3 - Teams can only have a maximum number of specific classes in play at a given time.
Class restrictions are as follows:
Scout - 1 Maximum
Soldier - 1 Maximum
Pyro - 1 Maximum
Demoman - 1 Maximum
Heavy - 1 Maximum
Engineer - 1 Maximum
Medic - 1 Maximum
Sniper - 1 Maximum
Spy - 1 Maximum - 9.4 - All matches use this whitelist: Current Whitelist.
Currently Banned Weapons
Mad Milk
Vaccinator
Jarate - 9.5 - Arena mode is played most points in 25 minutes, with a 6 point win difference (i.e. If a team leads by 6 points at any point, the match ends). The config used is 
tfarena_arena.cfg.- 9.5.1 - Arena match scoring is as follows:
- +6 Score Difference ~ 6-0 Match Points
 - +5 Score Difference ~ 6-1 Match Points
 - +4 Score Difference ~ 6-2 Match Points
 - +3 Score Difference ~ 6-3 Match Points
 - +2 Score Difference ~ 6-4 Match Points
 - +1 Score Difference ~ 6-5 Match Points
 
 - 9.5.2 Each server must have the Enhanced Match Timer plugin which extends overtime rounds.
 
 - 9.5.1 - Arena match scoring is as follows: