Head to head
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Grass
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Pancho J.F. Guzman's wins on the left · Robert Lutz's on the right · bar lengths share one scale
All meetings (2)
| 1969 | Boston-2 | Grass | R32 | Robert Lutz | 6-3 6-4 |
| 1968 | Wimbledon | Grass | R128 | Pancho J.F. Guzman | 11-13 1-6 8-6 6-3 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.