BO3 is an abbreviation of "Best of three" which is a very common QuakeWorld match format meaning that the team/player who is able to win 2 maps out of 3 first, is the winner of the match. By using Best of three format leagues for example are able to avoid tied games.
|Quad | Ring/Eyes | Pent|
GA | YA | RA | Mega
Axe | SG/Boomstick | SSG | NG | SNG | GL | RL | LG/Shaft
Binds | Bunnyhop | CFG | Demo | Duel | FFA | Frag | Rocket Jump | GLRJ | rpickup | pickup
|Cam | Flood | +forward | BG | CS | GG | HPW | LPB | MGT | MST | Kenya | Rapecloset | TB3 | Stomp | BO3 | BO5 | Div1 delay | kpickup|