Over 150 competitors from around the world entered the 2018 Extreme Unicycling Championship in Cologne, Germany. They performed various tricks, including rails and half-pipes, at a skatepark.
Emile Mathieu, the organiser of the championship, explained that urban unicycling is only 15 years old, so there are new tricks every year.
The event marked its tenth anniversary, which is believed a feat for such a niche sport.
