Head to head
2
Hard
0
2
Grass
0
Ryan Harrison's wins on the left · Yen-Hsun Lu's on the right · bar lengths share one scale
All meetings (4)
| 2014 | Delray Beach | Hard | R32 | Ryan Harrison | 4-6 1-0 RET |
| 2012 | Wimbledon | Grass | R128 | Ryan Harrison | 4-6 6-3 6-4 6-2 |
| 2012 | Eastbourne | Grass | R16 | Ryan Harrison | 6-1 7-6(2) |
| 2011 | Los Angeles | Hard | QF | Ryan Harrison | 3-6 6-3 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.