Head to head
3
Hard
2
Stan Wawrinka's wins on the left · Donald Young's on the right · bar lengths share one scale
All meetings (5)
| 2018 | Washington | Hard | R64 | Donald Young | 6-4 6-7(5) 7-6(3) |
| 2016 | Basel | Hard | R16 | Stan Wawrinka | 7-6(4) 6-7(3) 6-4 |
| 2015 | US Open | Hard | R16 | Stan Wawrinka | 6-4 1-6 6-3 6-4 |
| 2011 | Shanghai Masters | Hard | R32 | Stan Wawrinka | 6-7(5) 7-6(2) 6-2 |
| 2011 | US Open | Hard | R64 | Donald Young | 7-6(7) 3-6 2-6 6-3 7-6(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.