Jozef Wadecki won the world championship in gymnastics (discipline called tumbling) with this extraordinary performance:
As Wikipedia states:
In gymnastics, tumbling is an acrobatic discipline which is practised on a 25 metre long dynamic track. This sport is practised by both women and men. Tumblers go along the track performing eight consecutive elements without interruption or change of the rhythm. Only the feet and hands are allowed to make contact with the track.
Jozef Wadecki @ Facebook