Together with the 14-year-old son of Hos d'O, Joppen last competed internationally in February. During the CSI4* Zangersheide indoor event, Joppen and Havel still managed to place in the 1.50m speed class.

Over the course of their career, the pair claimed victory in the CSIO3* EEF Nations Cup of Mannheim in 2023. A year earlier, the duo won the 1.45m CSI2* Grand Prix of Opglabbeek.

They also earned placings in the CSI3* World Cup qualifier in Poznan in 2021 and delivered a strong performance in the CSI3* 1.55m Grand Prix of Opglabbeek in 2022. Prior to Joppen, Rodrigo Giesteira Almeida also rode the Zangersheide gelding.