Royal Arena 1 was a mixed martial arts event held on March 10, 2012 at Broendby Hallen in Copenhagen, Denmark. The main card was broadcasted live on TV 2 Sport & the undercard streamed on the website of the Danish tabloid newspaper, Ekstra Bladet. It featured two middleweight tounament bouts: Mikkel Parlo vs. Marcin Tondryk & Nic Osei vs. Simon Carlsen. A highly anticipated welterweight match between Nicolas Dalby & Mikkel Guldbæk was cancelled due to a knee injury sustained by Guldbæk during training. Dalby instead faced Spanish top prospect Acoidan Duque.
| Actor | Role |
|---|---|
| MMikkel ParloNot listed | Not listed |
| SSimon CarlsenNot listed | Not listed |
| NNic OseiNot listed | Not listed |
| MMarcin TondrykNot listed | Not listed |
 Nicolas DalbyNot listed | Not listed |
| JJoachim ChristensenNot listed | Not listed |
| KKenneth RosfortNot listed | Not listed |
| MMulenga ChandaNot listed | Not listed |
| NNicola GozziNot listed | Not listed |
| AAcoidan DuqueNot listed | Not listed |