I've just recently learned that you can still trigger EX raids by doing (preferrably Lvl 5) raids on some gyms.
As far as i know only specific gyms are suitable for triggering EX raids.
I have 2 questions regarding those gyms:
- Is there some sort of list where I can see which gyms in my area are possible EX raid gyms?
- If not, how do I identify which gym is an EX raid gym?
Best Answer
You can calculate the eligible gyms for ex-raid in an specific area. Let's review what we know about the ex-raids:
EX Raids can only occur once inside each S2 cell that passes over your local area. S2 cells are a simple mathematical way to describe a sphere’s geometry. S2 cells come in different sizes, often denoted as levels, and they are often used by developers to create zones on spherical objects, like the planet Earth.
Niantic uses them to control weather, create gyms, define Pokémon catch / hatch locations, etc… For this step we’ll be using the Level 12 S2 cell geometry.
A company named Sidewalk Labs created an incredible tool that draws Level 12 cells over a Google Map. Head over to their Region Converter and do the following:
Now that you can see your local S2 cells, remember that an EX Raid can only occur once per cell per cycle. Raiding 100 gyms inside one cell doesn’t benefit you as much as raiding a dozen of eligible gyms in a higher number of cells.
You can see more information in this amazing guide: https://pokemongohub.net/gym-raid-update/comprehensive-guide-trigger-ex-raids/
TL; DR: In order for a gym to be eligible for a EX-Raid: