Haroon Ismail
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Jan Gunnarsson | 0 | 2 | 2 | Jul 21, 1983 | H2H |
| Jose Lopez Maeso | 0 | 2 | 2 | Jul 22, 1982 | — |
| Wojtek Fibak | 0 | 2 | 2 | Jul 24, 1981 | H2H |
| Andrew Pattison | 2 | 0 | 2 | Jul 17, 1981 | — |
| Stan Smith | 0 | 2 | 2 | Jun 24, 1981 | H2H |
H2H data updated: 2026-09-06 00:00 UTC
Erik Van Dillen holds a 1–0 lead over Haroon Ismail in their ATP head-to-head. Across 1 main-draw meeting, Erik Van Dillen leads 1–0 on hard courts. Most recently, Erik Van Dillen won the 1978 Cleveland round of 32 4-6 6-4 7-6.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Erik Van Dillen | 4-6 6-4 7-6 | Haroon Ismail | Match data | Aug 23, 1978* | R32 | Cleveland | ATP 250 | Hard |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Haroon Ismail | #1,144 | #87 | 0 | 1,611 | 20 | 46 | 30.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Erik Van Dillen | — | — | — | 1,857 | — | — | — | 0 | 0 | 0 | 0 | 2 | 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 | Haroon Ismail | Erik Van Dillen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 23 | 1978 | 0–1 | 0.0% | #130 | 1,490 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1979 | 4–14 | 22.2% | #197 | 1,474 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1980 | 8–9 | 47.1% | #100 | 1,543 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1981 | 5–7 | 41.7% | #99 | 1,589 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1982 | 3–14 | 17.6% | #99 | 1,492 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1983 | 0–1 | 0.0% | #187 | 1,482 | 0 | 0 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Haroon Ismail | Erik Van Dillen | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 1 | 2 | 3 | 33.3% | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 0 | 3 | 3 | 0.0% | 3 | 1 | 4 | 75.0% | 2 | 5 | 7 | 28.6% | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | 1 | 6 | 7 | 14.3% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 2 | 0 | 2 | 100.0% |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 5 | 7 | 12 | 41.7% | 5 | 2 | 7 | 71.4% | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 6 | 4 | 10 | 60.0% | — | — | — | — | 2 | 2 | 4 | 50.0% | 5 | 3 | 8 | 62.5% |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 6 | 2 | 8 | 75.0% | 7 | 6 | 13 | 53.8% | 5 | 2 | 7 | 71.4% | 5 | 8 | 13 | 38.5% |
| 23 | 1978 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 2 | 6 | 8 | 25.0% | 7 | 8 | 15 | 46.7% | 2 | 3 | 5 | 40.0% | 8 | 10 | 18 | 44.4% |
| 24 | 1979 | 3 | 4 | 7 | 42.9% | 0 | 6 | 6 | 0.0% | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | 1975 | 5 | 6 | 11 | 45.5% | 4 | 4 | 8 | 50.0% | 1 | 2 | 3 | 33.3% | 6 | 8 | 14 | 42.9% |
| 25 | 1980 | 0 | 2 | 2 | 0.0% | 5 | 4 | 9 | 55.6% | — | — | — | — | 3 | 3 | 6 | 50.0% | 1976 | 4 | 5 | 9 | 44.4% | 6 | 11 | 17 | 35.3% | 0 | 1 | 1 | 0.0% | 4 | 5 | 9 | 44.4% |
| 26 | 1981 | 0 | 2 | 2 | 0.0% | 5 | 4 | 9 | 55.6% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1977 | 2 | 6 | 8 | 25.0% | — | — | — | — | 3 | 3 | 6 | 50.0% | 5 | 5 | 10 | 50.0% |
| 27 | 1982 | 0 | 3 | 3 | 0.0% | 3 | 9 | 12 | 25.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1978 | 5 | 5 | 10 | 50.0% | 1 | 3 | 4 | 25.0% | 3 | 1 | 4 | 75.0% | 3 | 6 | 9 | 33.3% |
| 28 | 1983 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1979 | 6 | 4 | 10 | 60.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | 1 | 5 | 6 | 16.7% |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 6 | 6 | 12 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 5 | 5 | 0.0% |
| 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 2 | 3 | 5 | 40.0% | 2 | 3 | 5 | 40.0% | 3 | 2 | 5 | 60.0% | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 3 | 12 | 15 | 20.0% | 13 | 24 | 37 | 35.1% | 0 | 5 | 5 | 0.0% | 4 | 5 | 9 | 44.4% | — | 51 | 67 | 118 | 43.2% | 35 | 42 | 77 | 45.5% | 24 | 28 | 52 | 46.2% | 39 | 56 | 95 | 41.1% |
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 | Haroon Ismail | Erik Van Dillen | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 1551 | 103.4 | — | — | — | — | -29 | — | +43 | 44.4% | -0.56 | 1–0 | — | — | -0.60 |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 1509 | 115.4 | — | — | — | — | +8 | +71 | +4 | 40.5% | -0.35 | 1–3 (25%) | — | — | +0.03 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | 1553 | 117.9 | — | — | — | — | +28 | — | — | 43.8% | -0.25 | 2–1 (67%) | 2–0 | — | -0.35 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 1636 | 120.5 | — | — | — | — | -77 | +17 | -151 | 44.8% | -0.45 | 5–5 (50%) | 5–2 (71%) | 103.7 | -0.66 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 1692 | 119.6 | — | — | — | — | -10 | — | -186 | 52.7% | +0.29 | 6–4 (60%) | 2–3 (40%) | 102.8 | +1.48 |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1854 | 142.4 | — | — | — | — | -103 | -103 | -217 | 55.4% | +0.61 | 8–5 (62%) | 4–7 (36%) | 102.9 | -3.69 |
| 23 | 1978 | 1491 | 102.0 | — | — | — | — | — | — | — | 33.3% | -0.33 | 0–1 | 0–1 | — | +0.03 | 1974 | 1732 | 131.2 | — | — | — | — | -57 | +10 | -81 | 47.0% | -0.33 | 5–12 (29%) | 9–6 (60%) | 97.1 | -2.17 |
| 24 | 1979 | 1474 | 113.3 | — | — | — | — | +123 | -9 | +6 | 27.8% | -1.42 | 1–2 (33%) | 1–2 (33%) | 98.4 | +0.36 | 1975 | 1760 | 140.7 | — | — | — | — | -39 | -9 | -140 | 47.1% | -0.13 | 4–5 (44%) | 9–11 (45%) | 100.9 | -3.70 |
| 25 | 1980 | 1543 | 119.3 | — | — | — | — | +37 | +3 | — | 46.2% | -0.44 | 2–1 (67%) | 3–1 (75%) | 103.9 | +1.91 | 1976 | 1694 | 140.9 | — | — | — | — | +52 | -37 | — | 41.2% | -0.49 | 6–6 (50%) | 6–7 (46%) | 100.6 | -2.46 |
| 26 | 1981 | 1589 | 128.3 | — | — | — | — | — | +28 | — | 40.0% | -0.51 | 2–1 (67%) | 0–2 | — | -0.08 | 1977 | 1688 | 135.0 | — | — | — | — | +11 | — | -76 | 41.8% | -0.25 | 2–1 (67%) | 4–6 (40%) | 99.3 | -1.07 |
| 27 | 1982 | 1492 | 109.5 | — | — | — | — | +19 | +46 | — | 23.1% | -2.00 | 1–2 (33%) | 1–1 | — | -0.39 | 1978 | 1589 | 112.0 | — | — | — | — | +11 | +17 | +91 | 43.7% | -0.35 | 6–5 (55%) | 3–6 (33%) | 97.2 | +3.46 |
| 28 | 1983 | 1482 | 97.2 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.04 | 1979 | 1635 | 132.0 | — | — | — | — | +19 | — | — | 40.9% | -0.59 | 1–1 | 1–2 (33%) | — | +0.56 |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 1605 | 121.8 | — | — | — | — | +34 | — | — | 31.9% | -1.08 | 1–2 (33%) | 3–5 (38%) | 97.0 | +0.02 |
| 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 1625 | 121.4 | — | — | — | — | +13 | -54 | +38 | 45.2% | -0.38 | 4–2 (67%) | 2–1 (67%) | 104.2 | +0.32 |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | 1605 | 105.1 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | 0–1 | — | -0.16 |
| Career | — | 1612 | 120.8 | — | — | — | — | +70 | +22 | +6 | 33.8% | -1.12 | 6–7 (46%) | 5–7 (42%) | 100.7 | +2.88 | — | 1858 | 137.5 | — | — | — | — | -16 | -23 | -68 | 45.0% | -0.26 | 52–52 (50%) | 50–57 (47%) | 102.0 | -2.68 |
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 |
|---|---|---|---|---|---|
| Jan Gunnarsson | 0 | 2 | 2 | Jul 21, 1983 | H2H |
| Jose Lopez Maeso | 0 | 2 | 2 | Jul 22, 1982 | — |
| Wojtek Fibak | 0 | 2 | 2 | Jul 24, 1981 | H2H |
| Andrew Pattison | 2 | 0 | 2 | Jul 17, 1981 | — |
| Stan Smith | 0 | 2 | 2 | Jun 24, 1981 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Harold Solomon | 4 | 7 | 11 | Feb 14, 1980 | — |
| Marty Riessen | 2 | 7 | 9 | Jan 19, 1979 | — |
| Zeljko Franulovic | 5 | 3 | 8 | May 31, 1978 | — |
| Tom Okker | 0 | 7 | 7 | Nov 17, 1977 | — |
| Clark Graebner | 2 | 5 | 7 | Jul 20, 1973 | — |