Brits fail to complete in Pardudicka British challengers in the 111th running of the Velka Pardudicka failed to complete the arduous four-and-a-quarter mile event at Pardudice today.Kim Bailey`s Supreme Charm unshipped his rider at the sixth fence and, after being remounted by jockey Robert Thornton, then refused, while Ferdy Murphy`s Irish Stamp failed to complete the course for the third year in a row.Tom George`s Frileux Royal was another early casualty on the prevailing fast ground.The race was won by the locally-trained Chalco, ridden by Peter Gehm, narrowly preventing Peruan winning the race for the fourth consecutive year.Tragedy struck for the Guillame Macaire-trained Anatole, who was looking the likely winner at the second-last fence, only to fall and sadly break his neck.