Organizace Back Alley Promotions pořádala první akci 10. 1. 2009 pod názvem 'XKO - Xtreme Knockout 2' (Arlington, Texas, United States, United States).
Do dnešního dne uspořádala celkem 72 akcí (USA).
Back Alley Promotions
| Datum | Země | Název, adresa |
|---|---|---|
| 31.5.2024 |  | XKO 67 - Fight Night Texas Live!, Arlington, Texas, United States |
| 12.4.2024 | | XKO 66 - Fight Night Texas Live!, Arlington, Texas, United States |
| 2.2.2024 | | XKO 65 - Fight Night The Statler Hotel, Dallas, Texas, United States |
| 30.11.2023 | | XKO Fight Night - Black Tie 2023 The Factory in Deep Ellum, Dallas, Texas, United States |
| 20.10.2023 | | XKO 64 - Fight Night Texas Live, Arlington, Texas, United States |
| 28.7.2023 | | XKO 63 - Xtreme Knockout 63: Summer Bash The Statler Dallas, Dallas, Texas, United States |
| 26.5.2023 | | XKO 62 - Xtreme Knockout 62 Texas Live, Arlington, Texas, United States |
| 7.4.2023 | | XKO 61 - Fight Night Texas Live, Arlington, Texas, United States |
| 27.1.2023 | | XKO 60 - Fight Night The Statler, Dallas, Texas, United States |
| 1.12.2022 | | XKO 59 - Black Tie Brawl The Factory in Deep Ellum, Dallas, Texas, United States |
| 21.10.2022 | | XKO 58 - Fight Night Texas Live, Arlington, Texas, United States |
| 10.9.2022 | | XKO 57 - End of Summer Bash The Statler, Dallas, Texas, United States |
| 7.5.2022 | | XKO 56 - Xtreme Knockout 56 Texas Live!, Arlington, Texas, United States |
| 18.2.2022 | | XKO 55 - Xtreme Knockout 55 The Statler Dallas, Dallas, Texas, United States |
| 2.12.2021 | | XKO - Amateur Series 20 The Factory in Deep Ellum, Dallas, Texas, United States |
| 8.10.2021 | | XKO 54 - Xtreme Knockout 54 Texas Live!, Arlington, Texas, United States |
| 18.9.2021 | | XKO 53 - Xtreme Knockout 53 The Statler, Dallas, Texas, United States |
| 26.8.2021 | | XKO 52 - Xtreme Knockout 52 Billy Bob's Texas, Fort Worth, Texas, United States |
| 24.6.2021 | | XKO - Xtreme Knockout 51: Fight Night Vol. 2 Billy Bob's Texas, Fort Worth, Texas, United States |
| 14.5.2021 | | XKO - Xtreme Knockout 50 Arlington, Texas, United States |
| 28.1.2021 | | XKO - Xtreme Knockout 49: Friday Night Billy Bob's Texas, Fort Worth, Texas |
| 29.2.2020 | | XKO - Amateur Series 19 Gas Monkey Live, Dallas, Texas, United States |
| 10.1.2020 | | XKO - Xtreme Knockout 48: All In Casino Night Gas Monkey Live, Dallas, Texas, United States |
| 4.12.2019 | | XKO - Amateur Series 18: Black Tie Dallas, Texas, United States |
| 4.10.2019 | | XKO - Xtreme Knockout 47: Friday Night Gas Monkey Live, Dallas, Texas, United States |
| 6.9.2019 | | XKO - Amateur Series 17 Gas Monkey Live, Dallas, Texas, United States |
| 13.7.2019 | | XKO 46 - Xtreme Knockout 46: Summer Bash Gas Monkey Live, Dallas, Texas, United States |
| 27.4.2019 | | XKO - Xtreme Knockout 45 Arlington Backyard, Arlington, Texas, United States |
| 12.1.2019 | | XKO - Xtreme Knockout 44: All In Gas Monkey Live, Dallas, Texas |
| 29.9.2018 | | XKO - Xtreme Knockout 43 Gas Monkey Live, Dallas, Texas |
| 21.7.2018 | | XKO - Xtreme Knockout 42 Gas Monkey Live, Dallas, Texas, United States |
| 19.5.2018 | | XKO - Xtreme Knockout 41 Gas Monkey Live, Dallas, Texas, United States |
| 10.3.2018 | | XKO - Xtreme Knockout 40 Gas Monkey Live, Dallas, Texas, United States |
| 6.1.2018 | | XKO - Xtreme Knockout 39 Gas Monkey Live, Dallas, Texas, United States |
| 21.10.2017 | | XKO - Xtreme Knockout 38 Gas Monkey Live, Dallas, Texas, United States |
| 12.8.2017 | | XKO - Xtreme Knockout 37 Gas Monkey Live, Dallas, Texas, United States |
| 10.6.2017 | | XKO - Xtreme Knockout 36 Gas Monkey Live, Dallas, Texas, United States |
| 1.4.2017 | | XKO - Xtreme Knockout 35 Gas Monkey Live, Dallas, Texas, United States |
| 28.1.2017 | | XKO - Xtreme Knockout 34 Gas Monkey Live, Dallas, Texas, United States |
| 5.11.2016 | | XKO - Xtreme Knockout 33 Gas Monkey Live, Dallas, Texas, United States |
| 27.8.2016 | | XKO - Xtreme Knockout 32 Gas Monkey Live, Dallas, Texas, United States |
| 25.6.2016 | | XKO - Xtreme Knockout 31 Gas Monkey Live, Dallas, Texas, United States |
| 30.4.2016 | | XKO - Xtreme Knockout 30 Gas Monkey Live, Dallas, Texas, United States |
| 2.4.2016 | | XKO - Amateur Series 2 The Gym, Arlington, Texas, United States |
| 27.2.2016 | | XKO - Xtreme Knockout 29 Gas Monkey Live, Dallas, Texas, United States |
| 5.12.2015 | | XKO - Xtreme Knockout 28 Gas Monkey Live, Dallas, Texas, United States |
| 7.11.2015 | | XKO - Amateur Series 1 The Gym, Arlington, Texas, United States |
| 12.9.2015 | | XKO - Xtreme Knockout 27 Gas Monkey Live, Dallas, Texas, United States |
| 27.6.2015 | | XKO - Xtreme Knockout 26 Dallas, Texas, United States |
| 28.3.2015 | | XKO - Xtreme Knockout 25 The Gym, Arlington, Texas, United States |
| 17.1.2015 | | XKO - Xtreme Knockout 24 The Gym, Arlington, Texas, United States |
| 18.10.2014 | | XKO - Xtreme Knockout 23 The Gym, Arlington, Texas, United States |
| 10.5.2014 | | XKO - Xtreme Knockout 22 Kay Bailey Hutchison Convention Center, Dallas, Texas, United States |
| 18.1.2014 | | XKO - Xtreme Knockout 21 The Gym, Arlington, Texas, United States |
| 23.11.2013 | | XKO - Xtreme Knockout 20 The Gym, Arlington, Texas, United States |
| 17.8.2013 | | XKO - Xtreme Knockout 19 Kay Bailey Hutchison Convention Center, Dallas, Texas, United States |
| 23.3.2013 | | XKO - Xtreme Knockout 18 The Gym, Arlington, Texas, United States |
| 12.1.2013 | | XKO - Xtreme Knockout 17 The Gym, Arlington, Texas, United States |
| 20.10.2012 | | XKO - Xtreme Knockout 16 The Gym, Arlington, Texas, United States |
| 2.6.2012 | | XKO - Xtreme Knockout 15 The Gym, Arlington, Texas, United States |
| 18.2.2012 | | XKO - Xtreme Knockout 14 The Gym, Arlington, Texas, United States |
| 3.12.2011 | | XKO - Xtreme Knockout 13 The Gym, Arlington, Texas, United States |
| 3.9.2011 | | XKO - Xtreme Knockout 12 The Gym, Arlington, Texas, United States |
| 23.7.2011 | | XKO - Xtreme Knockout 11 XKO Arena, Arlington, Texas, United States |
| 9.4.2011 | | XKO - Xtreme Knockout 10 The Gym, Arlington, Texas, United States |
| 29.1.2011 | | XKO - Xtreme Knockout 9 The Gym, Arlington, Texas, United States |
| 9.10.2010 | | XKO - Xtreme Knockout 8 XKO Arena, Arlington, Texas, United States |
| 5.6.2010 | | XKO - Xtreme Knockout 7 XKO Arena, Arlington, Texas, United States |
| 20.3.2010 | | XKO - Xtreme Knockout 6 XKO Arena, Arlington, Texas, United States |
| 17.10.2009 | | XKO - Xtreme Knockout 5 Arlington, Texas, United States, United States |
| 9.5.2009 | | XKO - Xtreme Knockout 4 Arlington, Texas, United States, United States |
| 14.3.2009 | | XKO - Xtreme Knockout 3 Arlington, Texas, United States, United States |
| 10.1.2009 | | XKO - Xtreme Knockout 2 Arlington, Texas, United States, United States |
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