Head to head
2
Hard
1
Lukas Lacko's wins on the left · Donald Young's on the right · bar lengths share one scale
All meetings (3)
| 2017 | Atlanta | Hard | R16 | Lukas Lacko | 6-3 6-1 |
| 2012 | Australian Open | Hard | R64 | Lukas Lacko | 6-3 6-1 3-6 6-3 |
| 2011 | US Open | Hard | R128 | Donald Young | 6-4 6-2 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.