Bruno Risi and Franco Marvulli from Switzerland have taken over the lead in the Amsterdam Six Days after four nights of racing. They lead, equal on laps, the German-Dutch combo of Danny Stam and Leif Lampater. Previous leaders Robert Bartko and Roger Kluge fell to third.

Risi and Marvulli have 167 points, versus the the 142 of Stam and Lampater. Bartko/Kluge have the most points (176), but lost a crucial lap in the Madison.

Danny de Ketele and Iljo Keisse are fourth, also one lap behind (131 points). Keisse is riding under special permission. Caught for doping at the 2008 Gent Six Days, he as been awaiting a ruling in the case ever since. Keisse claims a food supplement was contaminated.

He has been allowed to race as an elite without contract and joined the John Saey-Deschacht-Hyundai in May. An initial ruling date of August 15 was postponed and so far the Belgian cycling federation has made no decision. Keisse already won ten races this season.