| 2023-02-20 | Gridiron group rebooted in 2020 |
| 2022-11-21 | Athletic org. with a 2020 reboot |
| 2020-11-11 | Former gridiron org. for the Memphis Maniax and Orlando Rage |
| 2020-07-05 | Org. that kicked off again in 2020 after a 19-year hiatus |
| 2020-02-20 | Sports org. with the New York Guardians and Seattle Dragons |
| 2017-04-04 | Defunct gridiron org. |
| 2015-06-12 | 2001 sports flop, for short |
| 2013-01-06 | Sports org. of the early 2000s |
| 2012-04-25 | Bygone sports org. for which Minnesota governor Jesse Ventura was a TV analyst |
| 2011-05-12 | Sports org. that lasted only one season |
| 2010-09-16 | Former sports org. with the teams Hitmen and Rage |
| 2006-05-11 | Former grid org. |