Head to head
2
Hard
1
1
Clay
0
Joao Sousa's wins on the left · Martin Klizan's on the right · bar lengths share one scale
All meetings (4)
| 2016 | Tokyo | Hard | R32 | Joao Sousa | 4-6 6-3 6-3 |
| 2015 | Australian Open | Hard | R64 | Joao Sousa | 4-6 7-6(4) 6-4 1-0 RET |
| 2012 | Davis Cup G1 PO: SVK vs POR | Hard | RR | Martin Klizan | 6-2 7-5 6-7(9) 6-1 |
| 2011 | Davis Cup G1 R1: POR vs SVK | Clay | RR | Joao Sousa | 6-2 4-1 RET |
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.