Harlequins made it six from six as they managed to subdue Leicester on their way to 27-18 win at Welford Road on Saturday.
Leicester had started well with their forwards exerting control and executing a trademark driving maul from a line-out to give them a 5-0 lead inside three minutes.
Harlequins' response was immediate though as they imposed their own free-flowing brand of rugby on the game, moving the ball from side to side at speed and scoring twice in quick succession through wingers Sam Smith and Seb Stegmann.
After a breathless opening, the Tigers began to steady the ship and were rewarded with a well-worked try for Scott Hamilton, on as a replacement for the injured Matthew Tait, halfway through the first half.
The two fly-halves Jeremy Staunton and Nick Evans then exchanged penalties to make the score 17-15 to Harlequins at the interval. Evans and Staunton again notched three points apiece in the opening stages of what was a far cagier second half before both men also missed the opportunity to add to their personal tally.
With the game still on a knife edge going into the final ten minutes, the younger Harlequins pack began to wrestle control back from Leicester and they were rewarded when Joe Marler crashed over from short range.
Nick Evans, who had only failed once with the boot all day, added the conversion to put the game beyond the Tigers and condemn them to a fifth defeat of the season, whilst preserving Quins' own unbeaten record.
For Leicester Tigers:
Tries: Stankovich, Hamilton
Pens: Staunton 2
Tries: Smith, Stegman, Marler
Cons: Evans 3
Pens: Evans 2
Leicester Tigers:15 Niall Morris, 14 Mathew Tait, 13 Matt Smith, 12 Billy Twelvetrees, 11 Alesana Tuilagi, 10 Jeremy Staunton, 9 Sam Harrison, 8 Julian Salvi, 7 Ben Woods, 6 Steve Mafi, 5 Geoff Parling, 4 Ed Slater, 3 Julian White, 2 George Chuter (c), 1 Boris Stankovich.
Replacements: 16 Tom Youngs, 17 Michael Holford, 18 Peter Bucknall, 19 Graham Kitchener, 20 Ben Pienaar, 21 James Grindal, 22 Scott Hamilton, 23 George Ford.
Harlequins:15 Mike Brown, 14 Seb Stegmann, 13 George Lowe, 12 Jordan Turner-Hall, 11 Sam Smith, 10 Nick Evans, 9 Karl Dickson, 8 Chris York, 7 Luke Wallace, 6 Chris Robshaw (c), 5 George Robson, 4 Ollie Kohn, 3 Tim Fairbrother, 2 Chris Brooker , 1 Joe Marler.
Replacements: 16 Joe Gray, 17 Mark Lambert, 18 James Johnston, 19 Charlie Matthews, 20 Will Skinner, 21 Richard Bolt, 22 Rory Clegg, 23 Tom Casson.
Venue: Welford Road
Referee: David Rose