Head to head
1
Hard
2
1
Grass
0
Donald Young's wins on the left · Leonardo Mayer's on the right · bar lengths share one scale
All meetings (4)
| 2018 | Miami Masters | Hard | R128 | Leonardo Mayer | 3-6 6-4 6-2 |
| 2016 | Wimbledon | Grass | R128 | Donald Young | 6-4 7-5 3-6 6-3 |
| 2014 | Stockholm | Hard | R32 | Leonardo Mayer | 6-4 6-4 |
| 2012 | Winston-Salem | Hard | R64 | Donald Young | 4-6 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.