The ESL Grand Slam can be completed by the first team to win three ESL Pro Tour Masters tournaments and one EPT Championship tournament (Kraków, Cologne or an ESL-operated CS Major) inside a span of ten consecutive events.

• The list of eligible EPT Masters events & EPT Championship events are available on the ESL Grand Slam homepage.
• Results from a previous ESL Grand Slam are not counted towards the active ESL Grand Slam.
• Teams are allowed to swap players between tournaments, but a core of the same three players has to win four finals together in order to be eligible for the ESL Grand Slam.
• If a player has left his or her team and competed in an EGS event for another team, he or she becomes ineligible for any EGS prize money his or her old team would win.
• If a team that is about to complete the EGS is stopped in the final of their potential 4th win, their opponents receive the $100,000 “giant killer bonus”. The one exception to the rule is if a team denying the completion of the ESL Grand Slam completes it in the same final.
• There is no limit to how many giant killer bonuses are paid out in a single ESL Grand Slam Season.