Slalom skateboarding on Hog Hill – in pictures

Race organiser Rob Ashby calls a riders' briefing prior to the giant slalom event
Photograph: Jonny Weeks for the Guardian

Cones are marked and positioned along the course
Photograph: Jonny Weeks for the Guardian

Edijs Jermacenko of Latvia awaits the countdown at a start ramp
Photograph: Jonny Weeks for the Guardian

Top speeds in the men's giant slalom can hit 35mph, depending on technique, wind and course layout, with slower and straighter runs set for non-pro riders
Photograph: Jonny Weeks for the Guardian

A competitor (in white) tackles the course while being filmed by a rider behind him (in black). On the giant slalom course there are 50 cones spread over a downhill run that is approximately 100m
Photograph: Jonny Weeks for the Guardian

Each cone that's toppled incurs a time penalty, but this rider looks focused and is clean so far
Photograph: Jonny Weeks for the Guardian

Small margins make all the difference, as discussed by Ferdinand Lindner of Germany (wearing the blue shorts) and Marc Camelan Frrance (far right)
Photograph: Jonny Weeks for the Guardian

A rider skirts a cone with precision
Photograph: Jonny Weeks for the Guardian

Those shorts have weathered a few heavy landings
Photograph: Jonny Weeks for the Guardian

Out on the practice run, junior competitor Vincent Kitzhoefer of Germany shows he's got the cadence to go fast
Photograph: Jonny Weeks for the Guardian

A wire on the finish-line registers the time of each rider's run
Photograph: Jonny Weeks for the Guardian

This guy seems to be wearing his battle-scars with pride
Photograph: Jonny Weeks for the Guardian

... while this guy seems intent on not getting any
Photograph: Jonny Weeks for the Guardian

A skater lines up his board at a start gate
Photograph: Jonny Weeks for the Guardian

Two women compete head-to-head
Photograph: Jonny Weeks for the Guardian

The Swedish riders are among the best in the men's categories. Here, Viking Hadestrand talks tactics with Henrik Wadsten
Photograph: Jonny Weeks for the Guardian

Mika Hadestrand, Viking's father, hurtles down the course
Photograph: Jonny Weeks for the Guardian

Ferdinand Lindner braves the giant slalom topless
Photograph: Jonny Weeks for the Guardian

At the end of the weekend, the top riders in the various categories are announced
Photograph: Jonny Weeks for the Guardian

Joe McLaren of the USA was the fastest male pro - making him the reigning men's World and European Champion - and Kathrin Sehl of Germany was the fastest female. Henrik Wadsten of Sweden won the masters category, while Petr Matous of Czech Republic took the junior crown
Photograph: Jonny Weeks for the Guardian