League History
| Season | Cycle | Players | Season Closed |
| Ultra Prism: Season 1 | 2018 | 38 | February 28, 2018 |
| Crimson Invasion: Season 3 | 2018 | 38 | January 31, 2018 |
| Crimson Invasion: Season 2 | 2018 | 38 | December 31, 2017 |
| Crimson Invasion: Season 1 | 2018 | 38 | November 30, 2017 |
| Guardians Rising Season 3 | 2017 | 95 | July 31, 2017 |
| Guardians Rising Season 1 | 2017 | 95 | May 31, 2017 |
| Sun & Moon: Season 3 | 2017 | 95 | April 30, 2017 |
| Sun & Moon: Season 2 | 2017 | 96 | March 31, 2017 |
| Evolutions: Season 3 | 2017 | 98 | January 31, 2017 |
| Evolutions: Season 2 | 2017 | 90 | December 31, 2016 |
| Evolutions: Season 1 | 2017 | 90 | November 30, 2016 |
| Gear Season | 2016 | 37 | September 30, 2016 |
| Closure Season | 2016 | 37 | July 30, 2016 |
| Alakazam! Season | 2016 | 37 | June 30, 2016 |
| New Friends Season | 2016 | 37 | May 30, 2016 |
| Worlds Collide Season | 2016 | 37 | April 30, 2016 |
| Rift Season | 2016 | 37 | March 31, 2016 |
| Parallel Season | 2016 | 37 | February 29, 2016 |
| Tech Season | 2016 | 37 | December 31, 2015 |
| Nature Season | 2016 | 37 | November 30, 2015 |
| Sootopolis Gym | 2015 | 70 | October 19, 2015 |
| Mossdeep Gym | 2015 | 42 | September 07, 2015 |
| Fortree Gym | 2015 | 39 | July 27, 2015 |
| Petalburg Gym | 2015 | 25 | June 15, 2015 |
| Lavaridge Gym | 2015 | 16 | May 05, 2015 |