Jelle Sels defeated Robin Haase in the first round of the 2019 Hamburg CH ATP Challenger on hard court. The Belgian qualifier progressed past the Dutch veteran in a match that saw Sels secure his place in the second round of the tournament. With this victory, Sels demonstrated solid form on the hard court surface, continuing his run through the qualifying rounds and into the main draw proper. The result marked a significant achievement for the Belgian player in his quest to climb the ATP rankings through the Challenger circuit.