How does the CSGO Map Raffle at the ESL touraments work

counter-strike-global-offensive

I'm asking how the system works where the teams at the ESL touraments (Katowice, Cologne, etc.) choose the maps at the group. Please tell me a lot of details because I'm developing this system for amateur clans which doesn't have the oppurnity to use the official system.

Best Answer

It's a bit late, but the ESL uses these rules for their championships:
(The accepted answer is a bit inaccurate.)

Best of One:

Ban A - Ban B - Ban A - Ban B - Randomized map out of the three remaining

(Teams select 4 maps not to be played and the map to be played will be a random map from the remaining ones.)


Best of Three:

Ban A - Ban B - Pick A - Pick B - Randomized 3rd map out of the three remaining

(Teams select one map each not to be played, then pick a map to be played. If a decider is needed it will be randomly selected from the remaining maps in the pool.)