Head to head
5
Hard
1
1
Clay
0
0
Grass
1
Stefanos Tsitsipas's wins on the left · John Isner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 2023 | Los Cabos | Hard | R16 | Stefanos Tsitsipas | 6-2 6-4 |
| 2022 | Cincinnati Masters | Hard | QF | Stefanos Tsitsipas | 7-6(5) 5-7 6-3 |
| 2021 | Roland Garros | Clay | R32 | Stefanos Tsitsipas | 5-7 6-3 7-6(3) 6-1 |
| 2021 | Acapulco | Hard | R16 | Stefanos Tsitsipas | 6-3 6-2 |
| 2020 | Cincinnati Masters | Hard | R16 | Stefanos Tsitsipas | 7-6(2) 7-6(4) |
| 2019 | Beijing | Hard | QF | Stefanos Tsitsipas | 7-6(3) 6-3 |
| 2018 | Wimbledon | Grass | R16 | John Isner | 6-4 7-6(8) 7-6(4) |
| 2017 | Shanghai Masters | Hard | R32 | John Isner | 7-6(2) 7-6(9) |
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.