Head to head
2
Hard
1
1
Clay
2
1
Grass
2
Grigor Dimitrov's wins on the left · Gilles Simon's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 2018 | Barcelona | Clay | R32 | Grigor Dimitrov | 6-2 6-1 |
| 2016 | Cincinnati Masters | Hard | R64 | Grigor Dimitrov | 6-1 6-3 |
| 2016 | Wimbledon | Grass | R64 | Grigor Dimitrov | 6-3 7-6(1) 4-6 6-4 |
| 2016 | Monte Carlo Masters | Clay | R32 | Gilles Simon | 6-4 6-3 |
| 2016 | Brisbane | Hard | R32 | Grigor Dimitrov | 6-3 7-6(10) |
| 2012 | London Olympics | Grass | R32 | Gilles Simon | 6-3 6-3 |
| 2012 | Nice | Clay | R16 | Gilles Simon | 6-3 6-3 |
| 2009 | Queen's Club | Grass | R32 | Gilles Simon | 7-6(7) 7-6(5) |
| 2009 | Marseille | Hard | R32 | Gilles Simon | 4-6 6-3 7-5 |
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.