Head to head
0
Hard
1
3
Clay
1
1
Carpet
0
Zeljko Franulovic's wins on the left · Hans-Joachim Ploetz's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1970 | Jacksonville | Clay | R16 | Hans-Joachim Ploetz | 3-6 10-8 6-2 |
| 1970 | Hampton | Carpet | R32 | Zeljko Franulovic | 6-3 6-2 |
| 1969 | Houston | Clay | R16 | Zeljko Franulovic | 6-1 4-6 6-3 |
| 1969 | St. Petersburg | Clay | QF | Zeljko Franulovic | 6-4 6-2 |
| 1969 | Barranquilla | Clay | R16 | Zeljko Franulovic | 2-6 8-6 8-6 |
| 1969 | Kingston | Hard | QF | Hans-Joachim Ploetz | 4-6 7-5 8-6 |
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.