The striking grey stallion (Calvino Z x Quidam de Revel), renowned for his immense scope and power, paired up with the Barbizon-based rider in 2020. Although injuries unfortunately interrupted his sporting career on several occasions, the stallion was long considered a key anchor and a major prospect for both 'Bosty' and the French national team.

International Success at the Absolute Highest Level

Before Cassius Clay VDV Z made his way to France, he made his international debut under the Dutch flag with Bas Knijff and Rob Heijligers. However, under Bost’s saddle, he truly blossomed into an absolute 5* star.

The duo racked up an impressive track record, with major highlights in 2022 and 2023:

  • 1st place: CSI4* Grand Prix of Fontainebleau (2023)

  • 1st place: CSIO5* Nations Cup of Rome (2022 - contributing a crucial double clear)

  • 2nd place: LGCT Grand Prix of Paris (2023)

  • 4th place: CSI5* major class in Grimaud (2022)

  • 5th place: Rolex Grand Prix CSI5* Windsor (2023)

  • 6th place: CSI5* Grand Prix of Saut Hermès (2023)

"Thank you for everything, Cassius"

The sudden loss is a heavy blow for the former European Champion. On his social media, an emotional Roger-Yves Bost shared:

"It is with immense sadness that I must announce the sudden passing of my beloved Cassius Clay VDV. Together, we experienced extraordinary moments, highlighted by our victories in Fontainebleau and the Rome Nations Cup, and our second place in Paris. Thank you for everything, Cassius."