Hazel explained the process a bit more in detail once everyone had started listening.
The first part was the battle that would be on a massive scale. It included 80% of the participants and the locals they had brought over to their side. In total it was expected to have more than 40,000 people, locals, and participants included which only made up 10% of the 40,000 if even that.
Coordinates of the battleground would be given to the First protectors of each city who will then pass them over to the designated leaders.
The second one would take place a day later i.e 70 hours or so after the first one.
It would include 5-10 of the best cultivators from each side.
Both of the battles were designed to calculate different things and had different criteria for achieving victory.