The ATP Challenger Košice (officially: Košice Challenger ) was a tennis tournament that was held annually between 1993 and 1998 in Košice , Slovakia . It was part of the ATP Challenger Tour and was played outdoors on clay. Dominik Hrbatý was the only one to win two titles; Jiří Novák and David Rikl managed the same in doubles, with Rikl being the only three-time tournament winner with another title in singles.