The man at the centre of a violent stoush at an Auckland skate park has pleaded guilty to two assault charges.



Craig Platt, who featured in a video of the March incident that went viral, appeared in the Auckland District Court today, where he admitted the charges.



The video taken during the Skinny & Serenity National Grom Skate Comp at Victoria Park showed Platt shoulder-charging a teenage skateboarder to the ground and shoving another man, Leighton Dyer.



Platt originally faced one charge over the assault of the teenage boy at the skate park on March 25, but police laid a second charge against Platt for assaulting Dyer at the same event.



The event received widespread attention when footage of the incident spread online, prompting police to investigate and Auckland mayor Len Brown to wade in.



The under-16 contest was sponsored by Serenity, the rehab centre run by convicted drug trafficker William Murdoch.



Murdoch has come under fire for graffiti plastered on the new skate park during the event, and has been hit with an $8000 repair bill.



Platt will be sentenced on September 7. His lawyer John Armstrong indicated he would apply for a discharge without conviction.