Biarritz kept the pressure on Heineken Cup Pool One rivals London Wasps and
Leicester with a comfortable win over Italian minnows Calvisano.
The home side scored seven tries at Parc des Sports Aguilera to end Calvisano's hopes of progressing.
Winger Philippe Bidabe bagged two while full-back Mikael Etcheverra won the man-of-the-match award.
Calvisano flanker Roberto Mandelli saved his side's blushes with a well-taken late try.