League History
| Season | Cycle | Players | Season Closed |
| Ultra Prism: Season 1 | 2018 | 55 | February 28, 2018 |
| Crimson Invasion: Season 3 | 2018 | 55 | January 31, 2018 |
| Crimson Invasion: Season 2 | 2018 | 53 | December 31, 2017 |
| Crimson Invasion: Season 1 | 2018 | 53 | November 30, 2017 |
| Burning Shadows: Season 3 | 2018 | 53 | October 31, 2017 |
| Burning Shadows: Season 2 | 2018 | 53 | September 30, 2017 |
| Burning Shadows: Season 1 | 2018 | 53 | August 31, 2017 |
| Guardians Rising Season 3 | 2017 | 54 | July 31, 2017 |
| Guardians Rising Season 2 | 2017 | 54 | June 30, 2017 |
| Guardians Rising Season 1 | 2017 | 54 | May 31, 2017 |
| Sun & Moon: Season 3 | 2017 | 53 | April 30, 2017 |
| Sun & Moon: Season 2 | 2017 | 52 | March 31, 2017 |
| Sun & Moon: Season 1 | 2017 | 52 | February 28, 2017 |
| Evolutions: Season 3 | 2017 | 52 | January 31, 2017 |
| Evolutions: Season 2 | 2017 | 39 | December 31, 2016 |
| Rescue Season | 2016 | 46 | October 31, 2016 |
| Gear Season | 2016 | 42 | September 30, 2016 |
| Closure Season | 2016 | 39 | July 30, 2016 |
| Alakazam! Season | 2016 | 39 | June 30, 2016 |
| New Friends Season | 2016 | 34 | May 30, 2016 |
| Worlds Collide Season | 2016 | 36 | April 30, 2016 |
| Rift Season | 2016 | 33 | March 31, 2016 |
| Break Season | 2016 | 32 | January 31, 2016 |
| Tech Season | 2016 | 31 | December 31, 2015 |
| Nature Season | 2016 | 32 | November 30, 2015 |