Double knockout as skateboarder falls off and second racer piles into him and they hit the dirt

It’s Skid Row! Double knockout as skateboarder falls off ride and slides along road… only for second racer to pile into him and hit the dirt

  • The horror crash was at an illegal hill bombing event in San Francisco, California
  • Two skaters were taken to hospital with head injuries but have since recovered 
  • Skaters fly down the hill without helmets for the ultimate adrenaline rush 

A video shows the horrifying moment two skateboarders crash while going at speeds of 40mph at an illegal skate event. 

The horror crash was at a hill bombing event in San Francisco resulting in two skateboarders going to hospital. 

Footage shows three skateboarders flying down the hill at great speeds as one wearing a black t-shirt comes off his board.

The horror crash was at an illegal hill bombing event in San Francisco resulting in two skateboarders going to hospital

The two skaters, who may have been going at speeds of up to 40mph collide as one falls and can't out the way of the other

The two skaters, who may have been going at speeds of up to 40mph collide as one falls and can’t out the way of the other

The skateboarder wearing a black t-shirt, left, falls from his board while two other skaters come down the hill behind him at great speeds

The skateboarder wearing a black t-shirt, left, falls from his board while two other skaters come down the hill behind him at great speeds

As he skids along the ground he tries to crawl out the way of other skaters but before he can move another skater crashes into him. 

One onlooker wearing a mask said: ‘He knocked him out,’ as crowds swarm round the two casualties.    

The video of the carnage has gone viral gathering over 79k views on Instagram.    

The hill bombing event, which is an impromptu gathering, organized by word-of-mouth and call-outs on social media, drew in hundreds to take part.

Revellers skate down a street as fast as they possibly can usually without helmets, for the ultimate adrenaline rush.

Stephen Muro, 26, from Los Angeles, captured the accident on camera on July 11th.

The skateboarder slides along the ground after coming off his board at the impromptu gathering that is organized by word-of-mouth

The skateboarder slides along the ground after coming off his board at the impromptu gathering that is organized by word-of-mouth

One onlooker said: 'He knocked him out,' as stunned crowds watch the carnage

One onlooker said: ‘He knocked him out,’ as stunned crowds watch the carnage 

He said: ‘It’s a traditional event that happens once a year where the skateboarders block off the streets and it becomes a free for all hill bomb.

‘People do their best to max out on their speed but it’s not a competition.’

The skateboarders who brave the jaw-dropping hill, hurtle down it at speeds of up to 40mph.

Stephen said: ‘When the guys fell off everyone in the crowd freaked out.

The crowds begin to swarm the boys and try to help before they were taken to hospital and received treatment for head injuries

The crowds begin to swarm the boys and try to help before they were taken to hospital and received treatment for head injuries 

The boy attempts to crawl out of the way of oncoming boarders but is hit by another boy coming towards him

The boy attempts to crawl out of the way of oncoming boarders but is hit by another boy coming towards him

‘Sometimes the ambulance is already on the scene waiting for someone to come crashing down.

‘They had to keep coming back after taking multiple people to the hospital.’

Both of the skateboarders whom Stephen didn’t want to name, received treatment in hospital for the head injuries but have since recovered and are back skating.