Head to head
0
Hard
3
1
Clay
0
Donald Young's wins on the left · Ryan Harrison's on the right · bar lengths share one scale
All meetings (4)
| 2018 | New York | Hard | R32 | Ryan Harrison | 6-3 7-6(4) |
| 2017 | Memphis | Hard | SF | Ryan Harrison | 6-4 6-4 |
| 2015 | Acapulco | Hard | R32 | Ryan Harrison | 4-6 6-2 4-2 RET |
| 2014 | Houston | Clay | R32 | Donald Young | 6-0 6-1 |
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.