Head to head
2
Hard
0
1
Grass
0
Roger Federer's wins on the left · Yen-Hsun Lu's on the right · bar lengths share one scale
All meetings (4)
| 2015 | Australian Open | Hard | R128 | Roger Federer | 6-4 6-2 7-5 |
| 2014 | Halle | Grass | QF | Roger Federer | W/O |
| 2012 | Shanghai Masters | Hard | R32 | Roger Federer | 6-3 7-5 |
| 2009 | Wimbledon | Grass | R128 | Roger Federer | 7-5 6-3 6-2 |
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.