Harlequins ran eight tries past Cavalieri on Saturday to top Pool One after Connacht had edged out Bayonne on Friday.
Harlequins ran eight tries past Cavalieri on Saturday to top Pool One after Connacht edged out Bayonne on Friday.
Tom Williams opened the scoring before the Quins raced ahead thanks to tries from Ross Chisholm, George Lowe and a penalty try.
Chisholm struck with his second try early in the second half but Cavalieri hit back when Denis Majstorovic touched down.
Williams scored two more tries to bring up his hat-trick while Sam Smith joined him on the scorecard.
Ed Lewis-Pratt scored a late consolation for Cavalieri but it was not enough to overcome Quins' commanding lead.
Tries: Williams 3, Chisholm 2, Lowe, penalty, Smith
Cons: Clegg 6
Tries: Majstorovic, Lewis-Pratt
Cons: Wakarua 2
Harlequins 15 Ross Chisholm, 14 Gonzo Camacho, 13 Ollie Smith, 12 Tom Casson, 11 Tom Williams, 10 Rory Clegg, 9 Karl Dickson, 8 Tom Guest, 7 Will Skinner, 6 Tomas Vallejos, 5 Peter Browne, 4 George Robson, 3 James Johnston, 2 Joe Gray, 1 Ceri Jones,
Replacements:16 Chris Brooker, 17 Mark Lambert, 18 John Andress, 19 Ollie Kohn, 20 Luke Wallace, 21 Dave Moore, 22 Benjamin Urdapilleta, 23 Sam Smith,
Cavalieri Prato: 15 Rima Wakarua, 14 NiccolÃ² Tempestini, 13 Denis Majstorovic, 12 Sebastian Rodwell, 11 Filippo Vezzosi, 10 Alberto Chiesa, 9 Pino Patelli, 8 Noa Soqueta, 7 Filippo Cristiano, 6 Luca Petillo, 5 Wouter Moore, 4 Luca Beccaris, 3 Davide Stefani, 2 Lorenzo Giovanchelli, 1 Leandro Poloni,
Replacements: 16 Alessio Neri, 17 Anthony Goti, 18 Alessandro Borsi, 19 Nicola Belardo, 20 Stefano Canale, 21 Clemens Von Grumbkov, 22 Ed Lewis Pratt, 23 Gerlando Marino.
Venue: Twickenham Stoop
Referee: Andrew Macpherson
Connacht overcame Bayonne 16-13 in a gritty encounter at the Sportsground on Friday.
The victory has also done Harlequins a favour in the context of how things stand after two rounds.
Sean Cronin and Gavin Duffy scored in either half but a score from replacement hooker David Roumieu, converted by Jean-Baptiste Peyras, set up a nail-biting climax in Galway.
But Connacht held on for a much-needed four points ahead of the European break.
Tries: Cronin, Duffy
Pen: Keatley 2
Con: Peyras Loustalet
Pen: Fauque 2
Connacht: 15 Gavin Duffy, 14 Darragh Fanning, 13 Niva Ta'auso, 12 Keith Mathews, 11 Fionn Carr, 10 Ian Keatley, 9 Frank Murphy, 8 John Muldoon, 7 Ray Ofisa, 6 Jonny O'Connor, 5 Mike McCarthy, 4 Michael Swift, 3 Jamie Hagan, 2 Sean Cronin, 1 Brett Wilkinson.
Replacements: 16 Adrian Flavin, 17 Barry Fa'amausili, 18 Ronan Loughney, 19 Bernie Upton, 20 Andrew Browne, 21 Cillian Willis, 22 Miah Nikora, 23 Troy Nathan.
Aviron Bayonnais: 15 Pepito Elhorga, 14 Yoann Huget, 13 Thibault Lacroix, 12 Sam Gerber, 11 J-B Peyras Loustalet, 10 Sebastien Fauque, 9 Julien Audy, 8 Marc Baget, 7 RÃ©my Martin, 6 Julien Puricelli, 5 Troy Flavell, 4 Cameron Treloar, 3 Tonga Lea'aetoa, 2 Arnaud Heguy, 1 Pierre Philippe Lafond,
Replacements:16 David Roumieu, 17 Francois Da Ros, 18 Denis Avril, 19 Robin Linde, 20 Abdellatif Boutaty, 21 Cedric Garcia, 22 Garth Ziegler, 23 Joe Pietersen,
Referee: Carlo Damasco