H2H data updated: 2026-09-04 00:00 UTC

Mike Cahill vs Onny Parun H2H: 0-1

Onny Parun holds a 1–0 lead over Mike Cahill in their ATP head-to-head. Across 1 main-draw meeting, Onny Parun leads 1–0 on clay. Most recently, Onny Parun won the 1974 Indianapolis round of 16 6-3 7-5.

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Mike Cahill
USA Age 74 Right-Handed 183 cm / 6'0"
H2H
0 – 1
1 main draw meetings
Onny Parun
NZL Age 79 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Onny Parun #35 6-3 7-5 Mike Cahill Match data Aug 9, 1974* R16 Indianapolis 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.

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
Mike Cahill #448 #58 0 1,727 100 156 39.1% 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 Mike Cahill Onny Parun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 — — — — — — — 1968 13–16 44.8% — 1,563 0 0
22 1974 4–4 50.0% #138 1,539 0 0 1969 13–22 37.1% — 1,578 0 0
23 1975 10–17 37.0% #79 1,585 0 0 1970 19–21 47.5% — 1,600 0 0
24 1976 13–27 32.5% #136 1,587 0 0 1971 26–24 52.0% — 1,687 0 0
25 1977 10–18 35.7% #94 1,574 0 0 1972 39–36 52.0% — 1,705 0 0
26 1978 17–20 45.9% #69 1,692 0 0 1973 49–43 53.3% #40 1,733 0 1
27 1979 18–25 41.9% #113 1,678 0 0 1974 76–36 67.9% #25 1,946 0 3
28 1980 10–19 34.5% #189 1,601 0 0 1975 65–31 67.7% #26 1,888 0 4
29 1981 6–10 37.5% #100 1,629 0 0 1976 38–23 62.3% #29 1,843 0 6
30 1982 12–14 46.2% #98 1,644 0 0 1977 13–27 32.5% #89 1,631 0 6
31 1983 0–2 0.0% #108 1,621 0 0 1978 1–14 6.7% #210 1,504 0 6
32 — — — — — — — 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 Mike Cahill 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 %
21 — — — — — — — — — — — — — — — — — 1968 1 1 2 50.0% 2 7 9 22.2% 9 7 16 56.3% 1 1 2 50.0%
22 1974 — — — — 3 3 6 50.0% — — — — 1 1 2 50.0% 1969 2 5 7 28.6% 3 8 11 27.3% 8 8 16 50.0% 0 1 1 0.0%
23 1975 3 4 7 42.9% 6 9 15 40.0% — — — — 1 4 5 20.0% 1970 4 4 8 50.0% 10 11 21 47.6% 3 4 7 42.9% 2 2 4 50.0%
24 1976 1 4 5 20.0% 9 15 24 37.5% 0 2 2 0.0% 3 6 9 33.3% 1971 11 11 22 50.0% 6 8 14 42.9% 8 4 12 66.7% 1 1 2 50.0%
25 1977 2 3 5 40.0% 5 9 14 35.7% 0 1 1 0.0% 3 5 8 37.5% 1972 2 8 10 20.0% 16 14 30 53.3% 11 6 17 64.7% 10 8 18 55.6%
26 1978 5 6 11 45.5% 6 5 11 54.5% — — — — 6 9 15 40.0% 1973 15 15 30 50.0% 8 11 19 42.1% 21 7 28 75.0% 5 10 15 33.3%
27 1979 9 9 18 50.0% 8 8 16 50.0% 0 3 3 0.0% 1 5 6 16.7% 1974 17 8 25 68.0% 35 12 47 74.5% 17 10 27 63.0% 7 6 13 53.8%
28 1980 4 4 8 50.0% 6 9 15 40.0% — — — — 0 6 6 0.0% 1975 14 5 19 73.7% 32 15 47 68.1% 7 2 9 77.8% 12 9 21 57.1%
29 1981 5 5 10 50.0% 0 2 2 0.0% — — — — 1 3 4 25.0% 1976 11 3 14 78.6% 18 12 30 60.0% 3 1 4 75.0% 6 7 13 46.2%
30 1982 4 5 9 44.4% 6 4 10 60.0% — — — — 2 5 7 28.6% 1977 2 5 7 28.6% 8 10 18 44.4% 3 4 7 42.9% 0 8 8 0.0%
31 1983 — — — — 0 2 2 0.0% — — — — — — — — 1978 1 2 3 33.3% 0 10 10 0.0% 0 1 1 0.0% 0 1 1 0.0%
32 — — — — — — — — — — — — — — — — — 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 — 33 40 73 45.2% 49 66 115 42.6% 0 6 6 0.0% 18 44 62 29.0% — 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 Mike Cahill 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
21 — — — — — — — — — — — — — — — — 1968 1564 110.6 — — — — -9 -142 +80 52.6% -0.07 4–9 (31%) — — -0.25
22 1974 1540 112.1 — — — — — +29 — 50.0% -0.44 1–1 3–0 (100%) — +0.47 1969 1578 108.4 — — — — -30 -201 +65 39.1% -0.60 6–7 (46%) — — -0.52
23 1975 1586 128.8 — — — — 0 -9 — 42.9% -0.51 2–9 (18%) 3–2 (60%) — +0.58 1970 1600 119.0 — — — — +48 -91 -16 48.4% -0.13 5–3 (63%) 2–2 (50%) — +1.16
24 1976 1587 130.4 — — — — -15 -18 — 36.8% -0.84 4–7 (36%) 5–3 (63%) — -1.12 1971 1687 128.1 — — — — -46 -169 +78 51.6% +0.21 2–7 (22%) 5–10 (33%) — +1.55
25 1977 1574 122.9 — — — — +16 -15 — 40.3% -0.63 4–7 (36%) 6–4 (60%) — +1.24 1972 1706 125.9 — — — — -55 -49 +96 50.8% +0.31 10–9 (53%) 6–15 (29%) — +2.98
26 1978 1692 139.6 — — — — -36 -53 — 45.8% +0.05 5–4 (56%) 2–8 (20%) — +0.86 1973 1734 138.8 — — — — -6 -118 +241 53.0% +0.37 12–13 (48%) 13–20 (39%) — -0.99
27 1979 1679 129.0 — — — — -28 +8 -236 42.7% -0.57 7–6 (54%) 5–6 (45%) — +0.42 1974 1947 147.2 — — — — -21 -11 -72 62.6% +0.83 19–14 (58%) 18–10 (64%) — +1.03
28 1980 1602 134.8 — — — — +14 +31 — 35.5% -0.68 1–4 (20%) 2–7 (22%) — -0.50 1975 1889 140.3 — — — — +1 +51 -4 58.8% +0.55 27–4 (87%) 13–14 (48%) — +0.29
29 1981 1630 125.6 — — — — +36 — — 44.7% -0.55 1–2 (33%) 4–2 (67%) — +0.59 1976 1844 142.1 — — — — +61 +37 +88 60.0% +0.35 10–5 (67%) 19–9 (68%) — +0.73
30 1982 1644 127.1 — — — — -2 +3 — 46.6% -0.35 4–5 (44%) 5–2 (71%) — +1.34 1977 1631 137.9 — — — — +90 +96 +207 40.0% -0.57 5–10 (33%) 7–8 (47%) — -2.17
31 1983 1621 97.8 — — — — — — — 0.0% -2.75 — — — -0.27 1978 1504 119.8 — — — — +170 +86 — 23.1% -1.85 0–6 (0%) 2–4 (33%) — -0.08
32 — — — — — — — — — — — — — — — — 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 — 1728 136.1 — — — — -7 -5 -236 41.6% -0.53 29–45 (39%) 35–34 (51%) 100.1 +1.42 — 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.