Head to head
1
Hard
1
1
Clay
1
Dusan Lajovic's wins on the left · Federico Delbonis's on the right · bar lengths share one scale
All meetings (4)
| 2021 | Serbia | Clay | R16 | Federico Delbonis | 6-3 2-6 6-4 |
| 2016 | Chengdu | Hard | R32 | Dusan Lajovic | 1-6 6-3 6-4 |
| 2015 | Indian Wells Masters | Hard | R128 | Federico Delbonis | 6-4 6-3 |
| 2014 | Roland Garros | Clay | R128 | Dusan Lajovic | 6-3 6-2 6-3 |
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.