H2H data updated: 2026-09-03 00:00 UTC

John Sadri vs Dale Collings H2H: 1-0

John Sadri holds a 1–0 lead over Dale Collings in their ATP head-to-head. Across 1 main-draw meeting, John Sadri leads 1–0 on grass. Most recently, John Sadri won the 1980 Queen's Club Championships round of 64 6-2 6-3.

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John Sadri
USA Age 69 Right-Handed 188 cm / 6'2"
H2H
1 – 0
1 main draw meetings
Dale Collings
AUS Age 70 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Sadri #23 6-2 6-3 Dale Collings Match data Jun 11, 1980* R64 Queen's Club Championships ATP 250 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
John Sadri #997 #14 0 1,980 214 189 53.1% 0 0 0 0 2 2
Dale Collings #258 #101 0 1,575 23 43 34.8% 0 0 0 0 0 0

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 John Sadri Dale Collings
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1974 0–2 0.0% — 1,482 0 0
19 1976 0–1 0.0% #360 1,498 0 0 — — — — — — —
20 1977 0–1 0.0% #322 1,496 0 0 1976 1–1 50.0% #248 1,521 0 0
21 1978 6–8 42.9% #84 1,564 0 0 1977 1–4 20.0% #366 1,508 0 0
22 1979 29–24 54.7% #45 1,861 0 0 1978 3–5 37.5% #144 1,545 0 0
23 1980 47–25 65.3% #15 1,939 0 1 1979 6–13 31.6% #101 1,530 0 0
24 1981 22–21 51.2% #36 1,736 0 1 1980 6–7 46.2% #211 1,541 0 0
25 1982 32–23 58.2% #38 1,737 0 2 1981 4–7 36.4% — 1,526 0 0
26 1983 8–13 38.1% #93 1,641 0 2 1982 2–4 33.3% — 1,504 0 0
27 1984 25–16 61.0% #29 1,811 0 2 — — — — — — —
28 1985 25–25 50.0% #46 1,750 0 2 — — — — — — —
29 1986 12–21 36.4% #130 1,648 0 2 — — — — — — —
30 1987 8–11 42.1% #173 1,602 0 2 — — — — — — —

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 John Sadri Dale Collings
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 %
18 — — — — — — — — — — — — — — — — — 1974 — — — — — — — — 0 2 2 0.0% — — — —
19 1976 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
20 1977 — — — — — — — — — — — — 0 1 1 0.0% 1976 — — — — — — — — 1 1 2 50.0% — — — —
21 1978 3 4 7 42.9% 0 2 2 0.0% 3 2 5 60.0% — — — — 1977 — — — — — — — — 1 4 5 20.0% — — — —
22 1979 9 8 17 52.9% 5 3 8 62.5% 8 4 12 66.7% 7 9 16 43.8% 1978 0 1 1 0.0% — — — — 3 4 7 42.9% — — — —
23 1980 14 7 21 66.7% 0 2 2 0.0% 15 6 21 71.4% 18 10 28 64.3% 1979 3 3 6 50.0% 0 3 3 0.0% 3 6 9 33.3% 0 1 1 0.0%
24 1981 3 5 8 37.5% 0 1 1 0.0% 8 5 13 61.5% 11 10 21 52.4% 1980 1 1 2 50.0% 1 2 3 33.3% 4 3 7 57.1% 0 1 1 0.0%
25 1982 3 6 9 33.3% 4 2 6 66.7% 10 6 16 62.5% 15 9 24 62.5% 1981 — — — — 1 1 2 50.0% 3 5 8 37.5% 0 1 1 0.0%
26 1983 1 2 3 33.3% — — — — 1 4 5 20.0% 6 7 13 46.2% 1982 — — — — — — — — 2 3 5 40.0% 0 1 1 0.0%
27 1984 9 6 15 60.0% 4 2 6 66.7% 11 5 16 68.8% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
28 1985 8 10 18 44.4% — — — — 6 4 10 60.0% 11 11 22 50.0% — — — — — — — — — — — — — — — — —
29 1986 4 10 14 28.6% 0 1 1 0.0% 3 4 7 42.9% 5 6 11 45.5% — — — — — — — — — — — — — — — — —
30 1987 4 4 8 50.0% 1 1 2 50.0% 3 6 9 33.3% — — — — — — — — — — — — — — — — — — — — —
Career — 58 62 120 48.3% 14 15 29 48.3% 68 46 114 59.6% 74 66 140 52.9% — 4 5 9 44.4% 2 6 8 25.0% 17 28 45 37.8% 0 4 4 0.0%

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 John Sadri Dale Collings
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 — — — — — — — — — — — — — — — — 1974 1482 101.6 — — — — — — — 0.0% -4.00 — — — -0.22
19 1976 1499 111.1 — — — — — — — 0.0% -3.00 — — — -0.27 — — — — — — — — — — — — — — — —
20 1977 1497 104.1 — — — — — — — 0.0% -3.00 — 0–1 — -0.07 1976 1522 102.9 — — — — — — — 40.0% -0.40 0–1 — — -0.33
21 1978 1564 130.6 — — — — +6 — +44 50.0% +0.11 1–3 (25%) 2–2 (50%) — +0.84 1977 1508 116.0 — — — — — — -2 18.2% -1.82 — 2–2 (50%) — -0.07
22 1979 1861 151.0 — — — — -119 -244 -56 51.8% +0.17 11–5 (69%) 8–14 (36%) — -1.45 1978 1546 111.7 — — — — — — +34 41.7% -0.96 0–1 1–0 — +0.58
23 1980 1940 157.0 — — — — +11 — -34 62.3% +0.72 9–12 (43%) 19–16 (54%) — -5.20 1979 1531 112.7 — — — — +45 -49 -1 27.9% -1.16 3–1 (75%) 3–5 (38%) — +0.57
24 1981 1737 143.0 — — — — +67 — +81 48.1% +0.04 9–6 (60%) 11–12 (48%) — -1.48 1980 1542 104.2 — — — — +13 -65 +53 48.3% -0.52 1–2 (33%) 3–0 (100%) — +2.06
25 1982 1738 142.8 — — — — +19 -126 +70 56.2% +0.37 11–11 (50%) 19–19 (50%) — -1.52 1981 1527 107.7 — — — — — — +30 39.3% -0.68 1–2 (33%) 4–4 (50%) — +0.56
26 1983 1641 128.2 — — — — +86 — +64 39.2% -0.33 2–2 (50%) 4–8 (33%) — +1.38 1982 1505 97.1 — — — — — — +16 40.0% -0.67 — 2–2 (50%) — +1.10
27 1984 1812 142.4 — — — — -66 -146 +50 57.1% +0.42 7–6 (54%) 10–14 (42%) — -0.17 — — — — — — — — — — — — — — — —
28 1985 1751 142.3 — — — — -39 — +121 49.2% -0.08 7–7 (50%) 13–14 (48%) — -2.23 — — — — — — — — — — — — — — — —
29 1986 1649 140.6 — — — — -1 — +163 42.4% -0.39 3–8 (27%) 9–10 (47%) — -1.80 — — — — — — — — — — — — — — — —
30 1987 1602 121.9 — — — — +47 — +90 44.9% -0.24 2–1 (67%) 4–2 (67%) — +0.33 — — — — — — — — — — — — — — — —
Career — 1980 150.7 — — — — -7 -179 +46 52.1% +0.17 62–61 (50%) 99–112 (47%) 97.5 -2.90 — 1575 112.7 — — — — +35 -57 +22 35.8% -0.98 5–7 (42%) 15–13 (54%) 100.9 +6.44

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.