Munster have beaten Racing by 33 points to 25 in their opening pool game in rugby’s Investec Champions Cup.
Brian Gleeson and Shay McCarthy scored first-half tries to help Clayton McMillan’s team build a 14-6 lead at the break at Pairc Ui Chaoimh.
Fineen Wycherly, Craig Casey and captain Tadhg Beirne added tries in the second-half to seal the win.
Ciaran Frawley scored two tries on his home debut as Connacht won a thriller 45-36 against Saracens at Dexcom Stadium.
Last year’s beaten finalists Leinster demolished Clermont in the second-half to win 48-23 in France.
Dan Sheehan scored two of their tries, with a shoulder injury to Jack Conan the only blemish from that victory.
Henry Walker’s two first-half tries helped Ulster open their Challenge Cup campaign with a bonus-point 40-21 victory at Zebre.
