League History
| Season | Cycle | Players | Season Closed |
| Ultra Prism: Season 2 | 2018 | 66 | March 31, 2018 |
| Crimson Invasion: Season 3 | 2018 | 79 | January 31, 2018 |
| Crimson Invasion: Season 2 | 2018 | 79 | December 31, 2017 |
| Crimson Invasion: Season 1 | 2018 | 72 | November 30, 2017 |
| Burning Shadows: Season 3 | 2018 | 61 | October 31, 2017 |
| Burning Shadows: Season 1 | 2018 | 56 | August 31, 2017 |
| Guardians Rising Season 3 | 2017 | 74 | July 31, 2017 |
| Guardians Rising Season 2 | 2017 | 71 | June 30, 2017 |
| Sun & Moon: Season 2 | 2017 | 73 | March 31, 2017 |
| Sun & Moon: Season 1 | 2017 | 75 | February 28, 2017 |
| Evolutions: Season 2 | 2017 | 83 | December 31, 2016 |
| Rescue Season | 2016 | 104 | October 31, 2016 |
| Gear Season | 2016 | 83 | September 30, 2016 |
| Alakazam! Season | 2016 | 94 | June 30, 2016 |
| Rift Season | 2016 | 72 | March 31, 2016 |
| Parallel Season | 2016 | 92 | February 29, 2016 |
| Break Season | 2016 | 71 | January 31, 2016 |
| Nature Season | 2016 | 78 | November 30, 2015 |
| Sootopolis Gym | 2015 | 85 | October 19, 2015 |
| Fortree Gym | 2015 | 110 | July 27, 2015 |
| Petalburg Gym | 2015 | 94 | June 15, 2015 |
| Lavaridge Gym | 2015 | 79 | May 05, 2015 |
| Mauville Gym | 2015 | 73 | March 23, 2015 |
| Dewford Gym | 2015 | 82 | February 09, 2015 |
| Rustboro Gym | 2015 | 80 | December 29, 2014 |