I believe it is a free for all. I simply gained my first gymnasium battle and by the point I healed my predominant Pokemon and put him within the gymnasium it briefly turned yellow then gave me an error bar on the prime and it switched to purple.
The occupier was low stage however I needed to reboot because the gymnasium battle glitch occurred.
By the time I acquired again in another person from yellow staff captured it and I used to be ready so as to add my very own Pokemon and take gymnasium lead.
It looks like taking management of a gymnasium is extraordinarily chaotic and unpredictable.
I seen that a variety of the gyms round me with 1300cp Pokemon have been taking place and being changed by groups with lower than 500 Cp. I perceive why now. Once it is open the vultures come out.i believe they should rethink this method.