France's Cyril Despres claimed his fourth stage win on the Dakar Rally Thursday between Arica, Chile, to here to extend his overall lead on Spain's defending motorbike champion Marc Coma. Despres – whose relations with KTM teammate Coma deteriorated after stewards halved the Frenchman's huge deficit Monday's stage – added more than two minutes to his advantage on the Spaniard to 2min 22sec in the overall standings. He finished the 534km special, 1min 39sec ahead of another KTM rider Gerard Farres Guell of Spain with Coma third at 2min 01. American Robby Gordon in Hummer won the stage Wednesday to slice more time off overall leader Stephane Peterhansel's advantage.