H2H data updated: 2026-08-27 00:00 UTC
Istvan Gulyas holds a 1–0 lead over Hans Joachim Ploetz in their ATP head-to-head. Across 1 main-draw meeting, Istvan Gulyas leads 1–0 on clay. Most recently, Istvan Gulyas won the 1968 Dusseldorf round of 16 1-6 6-4 6-1.
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| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Istvan Gulyas | 1-6 6-4 6-1 | Hans Joachim Ploetz | Match data | Jul 12, 1968* | R16 | Dusseldorf | ATP 250 | Clay |
* Estimated match date where the exact historical date is unavailable.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Istvan Gulyas | #890 | #128 | 0 | 1,795 | 66 | 60 | 52.4% | 0 | 0 | 0 | 0 | 2 | 2 |
| Hans Joachim Ploetz | #281 | #65 | 0 | 1,644 | 73 | 98 | 42.7% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Istvan Gulyas | Hans Joachim Ploetz | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 29–16 | 64.4% | — | 1,725 | 0 | 2 | 1968 | 15–12 | 55.6% | — | 1,523 | 0 | 0 |
| 1969 | 6–10 | 37.5% | — | 1,649 | 0 | 2 | 1969 | 18–16 | 52.9% | — | 1,600 | 0 | 0 |
| 1970 | 12–7 | 63.2% | — | 1,700 | 0 | 2 | 1970 | 12–18 | 40.0% | — | 1,596 | 0 | 0 |
| 1971 | 11–10 | 52.4% | — | 1,736 | 0 | 2 | 1971 | 2–5 | 28.6% | — | 1,559 | 0 | 0 |
| 1972 | 4–7 | 36.4% | — | 1,652 | 0 | 2 | 1972 | 2–5 | 28.6% | — | 1,526 | 0 | 0 |
| 1973 | 4–10 | 28.6% | #222 | 1,577 | 0 | 2 | 1973 | 2–5 | 28.6% | — | 1,508 | 0 | 0 |
| — | — | — | — | — | — | — | 1974 | 5–9 | 35.7% | #95 | 1,562 | 0 | 0 |
| — | — | — | — | — | — | — | 1975 | 15–18 | 45.5% | #76 | 1,615 | 0 | 0 |
| — | — | — | — | — | — | — | 1976 | 2–10 | 16.7% | #185 | 1,515 | 0 | 0 |
Rows are aligned in career order because complete birth data is unavailable. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Istvan Gulyas | Hans Joachim Ploetz | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1968 | 7 | 6 | 13 | 53.8% | 22 | 6 | 28 | 78.6% | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | 1968 | 5 | 4 | 9 | 55.6% | 8 | 5 | 13 | 61.5% | 0 | 2 | 2 | 0.0% | 2 | 1 | 3 | 66.7% |
| 1969 | 1 | 3 | 4 | 25.0% | 5 | 5 | 10 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1969 | 4 | 4 | 8 | 50.0% | 8 | 7 | 15 | 53.3% | 3 | 2 | 5 | 60.0% | 3 | 3 | 6 | 50.0% |
| 1970 | 2 | 1 | 3 | 66.7% | 10 | 5 | 15 | 66.7% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1970 | 0 | 3 | 3 | 0.0% | 10 | 10 | 20 | 50.0% | 2 | 2 | 4 | 50.0% | 0 | 3 | 3 | 0.0% |
| 1971 | 1 | 1 | 2 | 50.0% | 10 | 7 | 17 | 58.8% | 0 | 2 | 2 | 0.0% | — | — | — | — | 1971 | — | — | — | — | 1 | 4 | 5 | 20.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 1972 | — | — | — | — | 4 | 6 | 10 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1972 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 1973 | — | — | — | — | 4 | 9 | 13 | 30.8% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1973 | — | — | — | — | 0 | 1 | 1 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | — | — | — | — | 5 | 8 | 13 | 38.5% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | — | — | — | — | 14 | 17 | 31 | 45.2% | — | — | — | — | 1 | 1 | 2 | 50.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | 0 | 3 | 3 | 0.0% | 2 | 6 | 8 | 25.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | 11 | 11 | 22 | 50.0% | 55 | 38 | 93 | 59.1% | 0 | 7 | 7 | 0.0% | 0 | 4 | 4 | 0.0% | Career | 10 | 15 | 25 | 40.0% | 48 | 59 | 107 | 44.9% | 9 | 16 | 25 | 36.0% | 6 | 8 | 14 | 42.9% |
Rows are aligned in career order because complete birth data is unavailable. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Istvan Gulyas | Hans Joachim Ploetz | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule |
| 1968 | 1725 | 117.9 | — | — | — | — | -196 | +81 | — | 59.0% | +0.84 | 6–3 (67%) | — | +1.29 | 1968 | 1524 | 101.0 | — | — | — | — | +24 | +27 | — | 46.0% | -0.57 | 4–1 (80%) | — | +0.26 |
| 1969 | 1649 | 110.6 | — | — | — | — | -139 | +135 | — | 44.4% | -0.31 | 0–3 (0%) | — | +0.27 | 1969 | 1601 | 114.3 | — | — | — | — | -8 | -13 | -51 | 50.0% | +0.09 | 7–5 (58%) | — | +1.38 |
| 1970 | 1700 | 127.4 | — | — | — | — | -138 | +94 | — | 54.9% | +0.25 | 2–2 (50%) | — | +0.60 | 1970 | 1597 | 116.7 | — | — | — | — | -108 | +21 | -49 | 37.7% | -0.62 | 4–2 (67%) | — | -0.01 |
| 1971 | 1737 | 133.1 | — | — | — | — | — | +76 | — | 58.5% | +1.11 | 0–4 (0%) | — | -0.06 | 1971 | 1559 | 105.2 | — | — | — | — | — | +5 | — | 37.5% | -1.58 | 0–1 | 0–1 | +0.21 |
| 1972 | 1652 | 112.6 | — | — | — | — | — | +70 | — | 36.8% | -0.63 | 4–2 (67%) | 0–1 | -0.14 | 1972 | 1526 | 106.1 | — | — | — | — | — | — | +19 | 31.6% | -1.37 | 1–2 (33%) | 1–1 | +0.13 |
| 1973 | 1578 | 106.3 | — | — | — | — | — | +26 | — | 30.3% | -1.45 | 1–1 | 3–0 (100%) | -0.74 | 1973 | 1508 | 106.9 | — | — | — | — | — | — | +4 | 12.5% | -2.37 | — | — | -0.47 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1563 | 120.9 | — | — | — | — | — | +8 | — | 37.5% | -0.82 | 3–2 (60%) | 3–0 (100%) | -0.55 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | 1615 | 117.7 | — | — | — | — | — | +1 | — | 44.7% | -0.47 | 6–4 (60%) | 4–5 (44%) | +3.10 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | 1515 | 102.4 | — | — | — | — | -52 | +34 | — | 22.6% | -1.74 | 1–2 (33%) | — | +0.56 |
| Career | 1795 | 123.9 | — | — | — | — | -177 | +79 | — | 51.3% | +0.28 | 13–15 (46%) | 3–1 (75%) | +0.98 | Career | 1644 | 115.7 | — | — | — | — | -18 | +10 | -18 | 40.4% | -0.69 | 26–19 (58%) | 8–7 (53%) | +2.76 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ilie Nastase | 1 | 4 | 5 | Jun 8, 1972 | H2H |
| Francois Jauffret | 0 | 3 | 3 | Apr 18, 1973 | H2H |
| Harald Elschenbroich | 1 | 2 | 3 | Apr 18, 1973 | H2H |
| Adriano Panatta | 3 | 0 | 3 | Apr 26, 1972 | H2H |
| Zeljko Franulovic | 1 | 2 | 3 | Jun 23, 1971 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Zeljko Franulovic | 2 | 3 | 5 | Mar 29, 1970 | H2H |
| Ilie Nastase | 0 | 4 | 4 | Feb 14, 1975 | H2H |
| Geoff Masters | 1 | 2 | 3 | Jun 2, 1976 | H2H |
| Francois Jauffret | 0 | 3 | 3 | May 8, 1976 | H2H |
| Stan Smith | 0 | 3 | 3 | Aug 20, 1975 | H2H |