Partipants vie for the ball during the 11th Mud Olympics held at the North Sea coast in Brunsbuettel, Germany, July 11, 2015. Amateur athletes have competed in several disciplines at the Mud Olympics since 2004. (Photo by Axel Heimken/EPA)

A player reacts during a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

A player gets a shower after her match at the so called "Wattoluempiade" (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Players attend the start of their soccer match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

A player throws a ball during a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Players fight for the ball during a soccer match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Players fight for the ball during a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Players celebrate a goal during a soccer match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Participants fight for the ball during a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Players gets a shower aftert their match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

A player laughs after a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

A player gets assistance by a team mate during their soccer match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)

Participants fight for the ball during a handball match at the so called “Wattoluempiade” (Mud Olympics) in Brunsbuettel at the North Sea, July 11, 2015. (Photo by Fabian Bimmer/Reuters)