To decide between the last elected officials of Battle, a group phase will determine of 4 the best who will pass to the semi-final. The rules do not change compared to the phases eliminating heat (even deck, an even number of handle)
Here thus the 9 finalists thus only the 4 first will reach the semi-final:
You have until May 19 last time to finish your matches, this seems to me amply sufficient. Good luck with all.