H2H data updated: 2026-09-09 00:00 UTC
Antonio Zugarelli holds a 1–0 lead over Osamu Ishiguro in their ATP head-to-head. Across 1 main-draw meeting, Antonio Zugarelli leads 1–0 on clay. Most recently, Antonio Zugarelli won the 1974 Japan Open round of 32 6-2 6-4.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Antonio Zugarelli | 6-2 6-4 | Osamu Ishiguro | Match data | Apr 11, 1974* | R32 | Japan Open | ATP 250 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Antonio Zugarelli | #827 | #24 | 0 | 1,821 | 112 | 150 | 42.7% | 0 | 0 | 0 | 0 | 1 | 1 |
| Osamu Ishiguro | #373 | #228 | 0 | 1,500 | 0 | 6 | 0.0% | 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.
| Age | Antonio Zugarelli | Osamu Ishiguro | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 1968 | 0–1 | 0.0% | — | 1,484 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1971 | 3–7 | 30.0% | — | 1,483 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1972 | 8–11 | 42.1% | — | 1,551 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1973 | 14–17 | 45.2% | #69 | 1,608 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1974 | 14–20 | 41.2% | #73 | 1,589 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1975 | 7–14 | 33.3% | #90 | 1,592 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1976 | 20–16 | 55.6% | #30 | 1,710 | 0 | 1 | — | — | — | — | — | — | — |
| 27 | 1977 | 20–15 | 57.1% | #44 | 1,698 | 0 | 1 | — | — | — | — | — | — | — |
| 28 | 1978 | 10–17 | 37.0% | #107 | 1,649 | 0 | 1 | — | — | — | — | — | — | — |
| 29 | 1979 | 6–14 | 30.0% | #135 | 1,615 | 0 | 1 | — | — | — | — | — | — | — |
| 30 | 1980 | 5–8 | 38.5% | #128 | 1,623 | 0 | 1 | — | — | — | — | — | — | — |
| 31 | 1981 | 2–4 | 33.3% | — | 1,582 | 0 | 1 | — | — | — | — | — | — | — |
| 32 | 1982 | 3–5 | 37.5% | — | 1,526 | 0 | 1 | — | — | — | — | — | — | — |
| 33 | 1983 | 0–1 | 0.0% | #267 | 1,516 | 0 | 1 | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | 1971 | 0–1 | 0.0% | — | 1,487 | 0 | 0 |
| 36 | — | — | — | — | — | — | — | 1973 | 0–2 | 0.0% | — | 1,457 | 0 | 0 |
| 37 | — | — | — | — | — | — | — | 1974 | 0–2 | 0.0% | #318 | 1,432 | 0 | 0 |
| 38 | — | — | — | — | — | — | — | 1975 | 0–1 | 0.0% | #373 | 1,425 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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.
| Age | Antonio Zugarelli | Osamu Ishiguro | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 18 | 1968 | 1484 | 97.4 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1971 | 1483 | 106.4 | — | — | — | — | — | +25 | — | 33.3% | -1.54 | 1–2 (33%) | 1–0 | — | +0.29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1972 | 1551 | 115.9 | — | — | — | — | — | 0 | +18 | 41.2% | -0.74 | 3–0 (100%) | 2–2 (50%) | 104.6 | -0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1973 | 1609 | 127.0 | — | — | — | — | -42 | +44 | -69 | 50.0% | -0.07 | 4–7 (36%) | 4–1 (80%) | 101.9 | -0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1974 | 1589 | 128.5 | — | — | — | — | +15 | +63 | — | 45.0% | -0.40 | 3–9 (25%) | 3–6 (33%) | 94.9 | +0.73 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1975 | 1593 | 114.5 | — | — | — | — | -20 | +71 | — | 38.0% | -0.88 | 2–4 (33%) | 2–4 (33%) | 94.8 | +1.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1976 | 1710 | 133.8 | — | — | — | — | -107 | +43 | — | 51.1% | -0.03 | 9–4 (69%) | 2–2 (50%) | 105.8 | +1.87 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 1977 | 1698 | 132.8 | — | — | — | — | — | +78 | — | 58.5% | +0.76 | 6–4 (60%) | 5–6 (45%) | 101.7 | +2.83 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1978 | 1649 | 128.3 | — | — | — | — | -70 | +87 | -196 | 40.0% | -0.78 | 1–7 (13%) | 4–2 (67%) | 95.3 | -0.67 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1979 | 1615 | 127.5 | — | — | — | — | -107 | +105 | — | 37.0% | -1.13 | 1–5 (17%) | 2–1 (67%) | 96.3 | -0.61 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1980 | 1623 | 123.9 | — | — | — | — | — | +72 | — | 37.9% | -0.62 | 1–0 | — | — | +0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1981 | 1582 | 106.9 | — | — | — | — | — | +59 | — | 38.5% | -0.85 | 1–1 | — | — | +0.69 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1982 | 1527 | 103.1 | — | — | — | — | — | +92 | — | 47.4% | -0.16 | 0–3 (0%) | 3–1 (75%) | 97.4 | +2.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1983 | 1516 | 103.2 | — | — | — | — | — | — | — | 33.3% | -0.33 | 0–1 | 0–1 | — | +0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 1488 | 100.3 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.03 |
| 36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1458 | 94.1 | — | — | — | — | — | — | — | 20.0% | -1.60 | 0–1 | 0–2 | — | +0.46 |
| 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1433 | 98.3 | — | — | — | — | — | — | — | 20.0% | -1.60 | 0–1 | — | — | +0.30 |
| 38 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | 1426 | 96.0 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.03 |
| Career | — | 1821 | 132.0 | — | — | — | — | -47 | +60 | -53 | 45.2% | -0.38 | 32–47 (41%) | 28–26 (52%) | 98.8 | +3.30 | — | 1500 | 94.9 | — | — | — | — | — | — | — | 13.3% | -2.13 | 0–2 | 0–2 | — | +13.67 |
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 |
|---|---|---|---|---|---|
| Bjorn Borg | 0 | 7 | 7 | Jul 20, 1979 | H2H |
| Hans Peter Kandler | 3 | 1 | 4 | Feb 11, 1982 | H2H |
| Paolo Bertolucci | 0 | 4 | 4 | Jun 17, 1981 | H2H |
| Ilie Nastase | 1 | 3 | 4 | Jul 18, 1980 | H2H |
| Patrick Proisy | 1 | 3 | 4 | May 15, 1980 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Barry Phillips Moore | 0 | 1 | 1 | Apr 17, 1975 | — |
| Robert Rheinberger | 0 | 1 | 1 | Oct 15, 1974 | H2H |
| Antonio Zugarelli | 0 | 1 | 1 | Apr 11, 1974 | H2H |
| Jim Mcmanus | 0 | 1 | 1 | Nov 1, 1973 | H2H |
| Paul Kronk | 0 | 1 | 1 | Oct 10, 1973 | — |