A New Zealand coroner Thursday condemned a “perilous” rugby-inspired sport in which competitors sprint and crash into each other without protective gear.

“Runit” competitors line up 20 meters apart and run directly at each other, with the winner being the person who “dominates the collision.”

Coroner Bruce Hesketh issued the warning as a separate comment in his report into a club player who died after being tackled in a traditional rugby league game.

The Australian-based Runit Championship League set up a base in New Zealand this year.

It offers a NZ$20,000 (US$12,000) prize to winners of regional competitions and NZ$200,000 to the overall winner of the tournament.

Fueled by social media, unsanctioned splinter events have been held in both Australia and New Zealand.

In the Runit Championship League’s first event in Auckland in May, two people were knocked out, and one man ended up having seizures after suffering a head injury.

The collision that led to the seizures was greeted with loud cheers from a crowd of more than 1,000 people.

The league organizers had planned to host the final event in Auckland but moved it to Dubai after calls for it to be banned in New Zealand.

The league is flying all competitors to the 28 June final at the Agenda Arena in Dubai.