In the year 2006, they made it to the Heineken Cup final where they met Munster. Although they lost their first pool game to the Saracens, Biarritz won the remaining matches and finished at the top of their pool, and defeated English clubs Sale and Bath in the finals to make the final. They lost the compelling game 19–23. They were however able to make it to the final of the 2005–06 Top 14, where they met Toulouse. Biarritz led nine points to six at half time but stormed to victory in the second half, the final score being 40 to 13, making Biarritz back-to-back winners. In the 2006–07 Heineken Cup Biarritz won all six of their pool games, topping their group with 29 points. They met fellow pool team Northampton Saints at Estadio Anoeta in the quarter-finals: Northampton upset Biarritz 8–7. In 2010, after finishing atop their pool, Biarritz defeated Ospreys and Munster, both at the Anoeta, and lost a hard-fought Heineken Cup final to Toulouse, 21–19, at Stade de France in Saint-Denis on Saturday, 22 May.