Head to head
12
Hard
4
1
Clay
0
4
Grass
2
1
Carpet
3
Roger Federer's wins on the left · Lleyton Hewitt's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (27)
| 2013 | Brisbane | Hard | F | Lleyton Hewitt | 6-1 4-6 6-3 |
| 2011 | Davis Cup WG PO: AUS vs SUI | Grass | RR | Roger Federer | 5-7 7-6(5) 6-2 6-3 |
| 2010 | Halle | Grass | F | Lleyton Hewitt | 3-6 7-6(4) 6-4 |
| 2010 | Australian Open | Hard | R16 | Roger Federer | 6-2 6-3 6-4 |
| 2009 | US Open | Hard | R32 | Roger Federer | 4-6 6-3 7-5 6-4 |
| 2009 | Cincinnati Masters | Hard | QF | Roger Federer | 6-3 6-4 |
| 2008 | Wimbledon | Grass | R16 | Roger Federer | 7-6(7) 6-2 6-4 |
| 2007 | Cincinnati Masters | Hard | SF | Roger Federer | 6-3 6-7(7) 7-6(1) |
| 2007 | Canada Masters | Hard | QF | Roger Federer | 6-3 6-4 |
| 2005 | US Open | Hard | SF | Roger Federer | 6-3 7-6(0) 4-6 6-3 |
| 2005 | Wimbledon | Grass | SF | Roger Federer | 6-3 6-4 7-6(4) |
| 2005 | Indian Wells Masters | Hard | F | Roger Federer | 6-2 6-4 6-4 |
| 2004 | Masters Cup | Hard | F | Roger Federer | 6-3 6-2 |
| 2004 | Masters Cup | Hard | RR | Roger Federer | 6-3 6-4 |
| 2004 | US Open | Hard | F | Roger Federer | 6-0 7-6(3) 6-0 |
| 2004 | Wimbledon | Grass | QF | Roger Federer | 6-1 6-7(1) 6-0 6-4 |
| 2004 | Hamburg Masters | Clay | SF | Roger Federer | 6-0 6-4 |
| 2004 | Australian Open | Hard | R16 | Roger Federer | 4-6 6-3 6-0 6-4 |
| 2003 | Davis Cup WG SF: AUS vs SUI | Hard | RR | Lleyton Hewitt | 5-7 2-6 7-6(4) 7-5 6-1 |
| 2002 | Masters Cup | Hard | SF | Lleyton Hewitt | 7-5 5-7 7-5 |
| 2002 | Paris Masters | Carpet | QF | Lleyton Hewitt | 6-4 6-4 |
| 2002 | Miami Masters | Hard | SF | Roger Federer | 6-3 6-4 |
| 2001 | 's-Hertogenbosch | Grass | SF | Lleyton Hewitt | 6-4 6-2 |
| 2000 | Basel | Carpet | SF | Roger Federer | 6-4 5-7 7-6(6) |
| 2000 | Canada Masters | Hard | R64 | Lleyton Hewitt | 3-6 6-3 6-2 |
| 2000 | Davis Cup WG R1: SUI vs AUS | Carpet | RR | Lleyton Hewitt | 6-2 3-6 7-6(2) 6-1 |
| 1999 | Lyon | Carpet | R32 | Lleyton Hewitt | 7-6(4) 2-6 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.