H2H data updated: 2026-09-01 00:00 UTC

Jeff Simpson vs Onny Parun H2H: 0-2

Onny Parun holds a 2–0 lead over Jeff Simpson in their ATP head-to-head. Across 2 main-draw meetings, Onny Parun leads 2–0 on grass. Most recently, Onny Parun won the 1975 ASB Classic semifinal 6-3 6-3 6-3.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Jeff Simpson
NZL Age 75 Right-Handed
H2H
0 – 2
2 main draw meetings
Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Onny Parun 6-3 6-3 6-3 Jeff Simpson Match data Jan 17, 1975* SF ASB Classic ATP 250 Grass
Onny Parun #57 3-6 6-3 7-6 6-1 Jeff Simpson #130 Match data Sep 4, 1973* R32 US Open Grand Slam Grass

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.

Career Comparison

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
Jeff Simpson #735 #66 0 1,587 47 94 33.3% 0 0 0 0 0 0
Onny Parun #398 #19 0 1,991 375 341 52.4% 0 0 0 0 6 6

Career Progression by Age

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 Jeff Simpson Onny Parun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 0–1 0.0% — 1,474 0 0 — — — — — — —
18 1969 0–3 0.0% — 1,418 0 0 — — — — — — —
19 1970 1–1 50.0% — 1,439 0 0 — — — — — — —
20 1971 0–4 0.0% — 1,389 0 0 — — — — — — —
21 1972 8–16 33.3% — 1,445 0 0 1968 13–16 44.8% — 1,563 0 0
22 1973 18–21 46.2% #92 1,563 0 0 1969 13–22 37.1% — 1,578 0 0
23 1974 12–30 28.6% #132 1,464 0 0 1970 19–21 47.5% — 1,600 0 0
24 1975 3–2 60.0% #193 1,544 0 0 1971 26–24 52.0% — 1,687 0 0
25 1976 1–2 33.3% — 1,533 0 0 1972 39–36 52.0% — 1,705 0 0
26 — — — — — — — 1973 49–43 53.3% #40 1,733 0 1
27 — — — — — — — 1974 76–36 67.9% #25 1,946 0 3
28 — — — — — — — 1975 65–31 67.7% #26 1,888 0 4
29 1980 0–1 0.0% #365 1,516 0 0 1976 38–23 62.3% #29 1,843 0 6
30 1981 1–2 33.3% — 1,520 0 0 1977 13–27 32.5% #89 1,631 0 6
31 1982 1–8 11.1% #96 1,446 0 0 1978 1–14 6.7% #210 1,504 0 6
32 1983 2–3 40.0% #167 1,447 0 0 1979 3–15 16.7% #214 1,429 0 6
33 — — — — — — — 1980 15–19 44.1% #96 1,597 0 6
34 — — — — — — — 1981 5–13 27.8% #99 1,529 0 6
35 — — — — — — — 1982 0–1 0.0% — 1,515 0 6

Surface Results by Age

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 Jeff Simpson Onny Parun
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
18 1969 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 1970 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 1971 0 2 2 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
21 1972 1 3 4 25.0% 3 5 8 37.5% 3 6 9 33.3% 1 2 3 33.3% 1968 1 1 2 50.0% 2 7 9 22.2% 9 7 16 56.3% 1 1 2 50.0%
22 1973 2 6 8 25.0% 4 7 11 36.4% 12 7 19 63.2% 0 1 1 0.0% 1969 2 5 7 28.6% 3 8 11 27.3% 8 8 16 50.0% 0 1 1 0.0%
23 1974 1 8 9 11.1% 2 7 9 22.2% 3 5 8 37.5% 6 10 16 37.5% 1970 4 4 8 50.0% 10 11 21 47.6% 3 4 7 42.9% 2 2 4 50.0%
24 1975 — — — — — — — — 3 1 4 75.0% 0 1 1 0.0% 1971 11 11 22 50.0% 6 8 14 42.9% 8 4 12 66.7% 1 1 2 50.0%
25 1976 1 2 3 33.3% — — — — — — — — — — — — 1972 2 8 10 20.0% 16 14 30 53.3% 11 6 17 64.7% 10 8 18 55.6%
26 — — — — — — — — — — — — — — — — — 1973 15 15 30 50.0% 8 11 19 42.1% 21 7 28 75.0% 5 10 15 33.3%
27 — — — — — — — — — — — — — — — — — 1974 17 8 25 68.0% 35 12 47 74.5% 17 10 27 63.0% 7 6 13 53.8%
28 — — — — — — — — — — — — — — — — — 1975 14 5 19 73.7% 32 15 47 68.1% 7 2 9 77.8% 12 9 21 57.1%
29 1980 0 1 1 0.0% — — — — — — — — — — — — 1976 11 3 14 78.6% 18 12 30 60.0% 3 1 4 75.0% 6 7 13 46.2%
30 1981 1 2 3 33.3% — — — — — — — — — — — — 1977 2 5 7 28.6% 8 10 18 44.4% 3 4 7 42.9% 0 8 8 0.0%
31 1982 0 2 2 0.0% 0 2 2 0.0% 1 4 5 20.0% — — — — 1978 1 2 3 33.3% 0 10 10 0.0% 0 1 1 0.0% 0 1 1 0.0%
32 1983 2 1 3 66.7% 0 2 2 0.0% — — — — — — — — 1979 0 7 7 0.0% 2 6 8 25.0% 1 1 2 50.0% 0 1 1 0.0%
33 — — — — — — — — — — — — — — — — — 1980 8 8 16 50.0% 3 7 10 30.0% 3 3 6 50.0% 1 1 2 50.0%
34 — — — — — — — — — — — — — — — — — 1981 3 2 5 60.0% 1 7 8 12.5% 1 4 5 20.0% — — — —
35 — — — — — — — — — — — — — — — — — 1982 0 1 1 0.0% — — — — — — — — — — — —
Career — 8 28 36 22.2% 9 26 35 25.7% 23 26 49 46.9% 7 14 21 33.3% — 91 85 176 51.7% 144 138 282 51.1% 95 62 157 60.5% 45 56 101 44.6%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Jeff Simpson Onny Parun
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 1474 98.4 — — — — — — — 40.0% -1.20 0–1 — — +0.07 — — — — — — — — — — — — — — — —
18 1969 1419 93.4 — — — — — — — 20.0% -2.10 0–1 — — +0.27 — — — — — — — — — — — — — — — —
19 1970 1440 105.6 — — — — — — — 62.5% +0.50 0–1 — — +0.09 — — — — — — — — — — — — — — — —
20 1971 1389 95.5 — — — — — — — 0.0% -2.43 — — — +0.56 — — — — — — — — — — — — — — — —
21 1972 1445 112.6 — — — — +10 +61 +55 33.3% -0.98 2–1 (67%) 0–2 — +0.79 1968 1564 110.6 — — — — -9 -142 +80 52.6% -0.07 4–9 (31%) — — -0.25
22 1973 1563 115.0 — — — — -105 -71 +76 46.8% -0.11 3–5 (38%) 1–2 (33%) — +2.88 1969 1578 108.4 — — — — -30 -201 +65 39.1% -0.60 6–7 (46%) — — -0.52
23 1974 1464 116.6 — — — — -45 -33 +135 33.3% -0.98 4–10 (29%) 4–10 (29%) — +1.84 1970 1600 119.0 — — — — +48 -91 -16 48.4% -0.13 5–3 (63%) 2–2 (50%) — +1.16
24 1975 1545 117.6 — — — — — — +136 64.3% +0.43 — 3–1 (75%) — +0.35 1971 1687 128.1 — — — — -46 -169 +78 51.6% +0.21 2–7 (22%) 5–10 (33%) — +1.55
25 1976 1534 96.6 — — — — -129 — — 42.9% -1.57 0–1 1–0 — +0.49 1972 1706 125.9 — — — — -55 -49 +96 50.8% +0.31 10–9 (53%) 6–15 (29%) — +2.98
26 — — — — — — — — — — — — — — — — 1973 1734 138.8 — — — — -6 -118 +241 53.0% +0.37 12–13 (48%) 13–20 (39%) — -0.99
27 — — — — — — — — — — — — — — — — 1974 1947 147.2 — — — — -21 -11 -72 62.6% +0.83 19–14 (58%) 18–10 (64%) — +1.03
28 — — — — — — — — — — — — — — — — 1975 1889 140.3 — — — — +1 +51 -4 58.8% +0.55 27–4 (87%) 13–14 (48%) — +0.29
29 1980 1516 98.9 — — — — — — — 0.0% -1.50 — 0–1 — +0.24 1976 1844 142.1 — — — — +61 +37 +88 60.0% +0.35 10–5 (67%) 19–9 (68%) — +0.73
30 1981 1520 108.6 — — — — -109 — — 42.9% +0.14 0–1 0–1 — +0.03 1977 1631 137.9 — — — — +90 +96 +207 40.0% -0.57 5–10 (33%) 7–8 (47%) — -2.17
31 1982 1446 93.8 — — — — — — +167 11.1% -2.11 1–0 1–3 (25%) — +0.56 1978 1504 119.8 — — — — +170 +86 — 23.1% -1.85 0–6 (0%) 2–4 (33%) — -0.08
32 1983 1448 99.1 — — — — -27 — — 36.4% -0.82 1–0 0–2 — +0.86 1979 1429 103.3 — — — — +100 +116 — 19.5% -1.76 0–1 0–6 (0%) — +1.15
33 — — — — — — — — — — — — — — — — 1980 1598 128.8 — — — — +25 -79 +188 47.3% -0.08 6–9 (40%) 7–8 (47%) — +0.57
34 — — — — — — — — — — — — — — — — 1981 1529 117.5 — — — — +118 -85 +178 22.2% -1.42 2–0 0–6 (0%) — -0.41
35 — — — — — — — — — — — — — — — — 1982 1516 100.7 — — — — — — — 33.3% -1.00 0–1 — — +0.11
Career — 1588 113.4 — — — — -56 -21 +98 37.2% -0.76 11–21 (34%) 10–22 (31%) 90.6 +6.45 — 1991 136.8 — — — — +8 -23 +87 51.4% +0.14 108–98 (52%) 92–112 (45%) 97.2 +0.73

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.