Prix de l'Opéra
Treve began her five-year-old campaign in the Group Two Prix Corrida at Saint-Cloud on 29 May. Starting the 4/9 favourite, she took the lead entering the last 200 metres and accelerated clear of her opponents to win by four lengths from the Prix de l'Opéra winner We Are. Head-Maarek commented "Today she was at 80 per cent. In the Grand Prix de Saint-Cloud she will be at 100 per cent... and the Arc, I hope she will be at 200 per cent!" On 28 June the mare contested the Grand Prix de Saint-Cloud and was made the 3/5 favourite against eight opponents including Flintshire and the Dubai Sheema Classic winner Dolniya. She stayed on strongly in the straight to overtake Flintshire 150 metres from the finish and won by one and a quarter lengths.