Leader De La Cour, trained by Thierry Doumen and ridden by Christophe Pieux, won the Prix Best Mate at Auteuil's new winter jumps festival.
The race was renamed in the triple Cheltenham Gold Cup winner's honour following his untimely death on Tuesday.
Newmarket trainer Jonathan Jay lifted the Grade One Prix Cambaceres on the same card with the Dean Gallagher-ridden Tidal Fury.
