League History
| Season | Cycle | Players | Season Closed |
| Guardians Rising Season 1 | 2017 | 16 | May 31, 2017 |
| Sun & Moon: Season 3 | 2017 | 16 | April 30, 2017 |
| Sun & Moon: Season 2 | 2017 | 16 | March 31, 2017 |
| Sun & Moon: Season 1 | 2017 | 16 | February 28, 2017 |
| Evolutions: Season 3 | 2017 | 14 | January 31, 2017 |
| Evolutions: Season 2 | 2017 | 13 | December 31, 2016 |
| Evolutions: Season 1 | 2017 | 14 | November 30, 2016 |
| Rescue Season | 2016 | 18 | October 31, 2016 |
| Gear Season | 2016 | 16 | September 30, 2016 |
| Steam Season | 2016 | 18 | August 31, 2016 |
| Closure Season | 2016 | 16 | July 30, 2016 |
| Alakazam! Season | 2016 | 15 | June 30, 2016 |
| New Friends Season | 2016 | 15 | May 30, 2016 |
| Worlds Collide Season | 2016 | 15 | April 30, 2016 |
| Rift Season | 2016 | 12 | March 31, 2016 |
| Parallel Season | 2016 | 12 | February 29, 2016 |
| Break Season | 2016 | 13 | January 31, 2016 |
| Tech Season | 2016 | 13 | December 31, 2015 |
| Nature Season | 2016 | 12 | November 30, 2015 |
| Sootopolis Gym | 2015 | 11 | October 19, 2015 |
| Mossdeep Gym | 2015 | 11 | September 07, 2015 |
| Fortree Gym | 2015 | 11 | July 27, 2015 |
| Petalburg Gym | 2015 | 11 | June 15, 2015 |
| Lavaridge Gym | 2015 | 11 | May 05, 2015 |
| Mauville Gym | 2015 | 11 | March 23, 2015 |