Kammala jumla mai zuwa: A cikin 1964, Mazzola ya zira kwallaye biyu don taimakawa Inter ta doke Real Madrid a wasan karshe na gasar cin kofin Turai na 1964 don taimakawa kulob din ya kwaikwayi nasarar da abokin hamayyarsa na Milan ya yi a kakar da ta gabata; ya gama gasar a matsayin dan wasan da ya zira kwallaye bakwai. Inter ta sake kare kambun Turai a kakar wasa ta gaba ta hanyar doke Benfica a wasan karshe. An fitar da Inter a wasan kusa da na karshe na Kofin Zakarun Turai a lokacin kakar 1965-66 daga Real Madrid, yayin da a cikin kakar 1966-67, Inter ta kai wasan karshe na gasar cin kofin Turai na uku, amma ta yi rashin nasara 2-1 ga Celtic duk da cewa Mazzola ya zira kwallaye na farko na wasan daga bugun jini a minti na bakwai. Mazzola kuma ya lashe kofuna biyu na Intercontinental Cup tare da Inter a
1964 da 1965, kuma ya kai wasan karshe na Coppa Italia na 1964 <unk> 65, tare da gudanar da matsayi na uku a Coppa Italia a lokacin kakar 1967 <unk> 68; ya kai wani wasan karshe na gasar cin kofin Turai tare da Inter a 1972, amma ya yi rashin nasara 2 <unk> 0 ga Ajax.