Organizace Underground Combat League pořádala první akci 3. 2. 2003 pod názvem 'UCL - Ground Zero - Inception' (Bronx, New York, United States).
Do dnešního dne uspořádala celkem 5 akcí (USA).
Underground Combat League
| Datum | Země | Název, adresa |
|---|---|---|
| 5.11.2006 |  | Underground Combat League - Power and Glory New York City, New York, United States, United States |
| 10.7.2005 | | UCL - Underground Combat League John’s Boxing Gym, The Bronx, New York, United States |
| 25.9.2004 | | UCL - Manhunt New York City, New York, United States |
| 27.6.2004 | | UCL - Revelations New York City, New York, United States |
| 3.2.2003 | | UCL - Ground Zero - Inception Bronx, New York, United States |