This week, RECF announced an update to the VEX elimination rounds structure.
Instead of the having eight 3 – team alliances playing best of three matches for the elimination rounds, VEX Worlds will move to 16 alliances made of 2 teams. Elimination rounds will be single rounds, not best 2 out of 3.
The intent is for this single-elimination format to roll out to all events in the 2018-2019 season.
For VRC, the following document contains the relevant updates: https://link.vex.com/docs/vex-in-the-zone/WorldsUpdate
The full game manual has been updated to reflect these changes: https://link.vex.com/docs/vex-in-the-zone/InTheZone-GameManual
For IQ, the new rule is found as T6 in the regular game manual: http://link.vex.com/docs/vexiq-ringmaster/GameManual