Roger Yves Bost (FRA) was the best in Friday's biggest class at Hubside Jumping in Grimaud, France – a CSI5* 1.55m competition with a jump-off counting for the world ranking. 

Fifteen of the 35 riders in the class moved on to the jump-off, where Bosty and the 11-year-old mare Bluemuch des Baleines (Chacco-Blue x Clinton) were the fastest with a time of 43.22 seconds. Only 0.20 seconds behind were Jérôme Guery (BEL) and Grupo Prom Diego (Verdi TN x Gran Corrado) – finishing in runner-up position, while the third place went to Mark McAuley (IRL) on O'Hara Els (Ogano Sitte x Liandero) after the pair stopped the clock at 44.44 seconds. Simon Delestre (FRA) and Cayman Jolly Jumper (Hickstead x Quaprice Boimargot Quincy) finished fourth, and Max Kühner (AUT) on EIC Coriolis des Isles (Zandor x Tlaloc M) fifth.

"I think I was fast all over today," Bosty said after his win in a press release from Hubside Jumping. "My horse is quick and doesn't waste time in the air, and is starting to turn better and better."

The home riders dominated Friday's five-star classes, and earlier in the day Olivier Perreau (FRA) won the 1.50m two-phase class counting for the world ranking. Riding GL Events Dolce Deceuninck (Toulon x Cartier van de Heffinck), the French rider stopped the clock at 38.28 seconds to take the win. With a time of 38.67 seconds, Wilm Vermeir (BEL) and Hotshot (Carembar de Muze x Calido I) finished in second place followed by Jérôme Guery (BEL) on Great Britain V (Nabab de Reve x Carolus II) in third. Mark McAuley took fourth riding GRS Lady Amaro (Amaretto Darco x Over The River XX) while fifth went to Robin Muhr (ISR) on Baccarat Meniljean (Diamant de Semilly x Dollar du Murier).