He helped guide Toulon to third in the regular season, making it all the way to the final against Toulouse, who were the victors that day, winning 18–12.
He made a threatening half-back partnership with Jonny Wilkinson and both players guided Toulon to the Top 14 and the 2013 Heineken Cup Final.
He was a key figure on the park during the Heineken Cup Final, beating Clermont 16–15 at the Aviva Stadium in Dublin.
His form was recognised and he returned to the French squad for the 2014 end-of-year rugby union internationals, where France beat Fiji and Australia, but lost to Argentina in the final week.
Tillous-Borde started in all three matches, making a formidable half-back partnership with Clermont Fly Half Camille Lopez.