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

Vladimir Zednik vs Clark Graebner H2H: 0-1

Clark Graebner holds a 1–0 lead over Vladimir Zednik in their ATP head-to-head. Across 1 main-draw meeting, Clark Graebner leads 1–0 on hard courts. Most recently, Clark Graebner won the 1972 Jacksonville round of 16 6-0 6-4.

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Vladimir Zednik
CZE Age 79 Right-Handed
H2H
0 – 1
1 main draw meetings
Clark Graebner
USA Age 82 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Clark Graebner 6-0 6-4 Vladimir Zednik Match data Jan 20, 1973* R16 Jacksonville 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.

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
Vladimir Zednik #300 #35 0 1,757 113 158 41.7% 0 0 0 0 2 2
Clark Graebner #199 #45 0 2,014 342 161 68.0% 0 0 0 0 12 12

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 Vladimir Zednik Clark Graebner
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1968 1–1 50.0% — 1,500 0 0 — — — — — — —
22 1969 4–2 66.7% — 1,561 0 0 — — — — — — —
23 1970 6–7 46.2% — 1,576 0 0 — — — — — — —
24 1971 17–20 45.9% — 1,629 0 0 1968 74–22 77.1% — 1,818 0 2
25 1972 19–20 48.7% — 1,653 0 1 1969 49–14 77.8% — 1,840 0 6
26 1973 14–24 36.8% #90 1,636 0 1 1970 58–28 67.4% — 1,840 0 8
27 1974 12–19 38.7% #93 1,635 0 1 1971 75–29 72.1% — 1,868 0 11
28 1975 3–11 21.4% #157 1,622 0 1 1972 33–22 60.0% — 1,811 0 11
29 1976 5–11 31.2% #106 1,593 0 1 1973 34–19 64.2% #48 1,770 0 12
30 1977 9–13 40.9% #66 1,642 0 1 1974 11–13 45.8% #99 1,693 0 12
31 1978 22–22 50.0% #70 1,660 0 2 1975 8–11 42.1% #120 1,583 0 12
32 1979 1–7 12.5% #300 1,582 0 2 1976 0–3 0.0% #199 1,540 0 12
33 1980 0–1 0.0% — 1,572 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 Vladimir Zednik Clark Graebner
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% — — — — — — — — — — — — — — — — — — — — — — — — —
22 1969 3 1 4 75.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
23 1970 — — — — 2 3 5 40.0% 3 3 6 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
24 1971 9 10 19 47.4% 5 5 10 50.0% 0 4 4 0.0% 3 1 4 75.0% 1968 30 11 41 73.2% 9 3 12 75.0% 28 6 34 82.4% 7 2 9 77.8%
25 1972 4 6 10 40.0% 5 6 11 45.5% 0 2 2 0.0% 10 6 16 62.5% 1969 13 2 15 86.7% 10 4 14 71.4% 22 6 28 78.6% 4 2 6 66.7%
26 1973 0 3 3 0.0% 8 9 17 47.1% 3 3 6 50.0% 3 9 12 25.0% 1970 15 11 26 57.7% 22 6 28 78.6% 12 3 15 80.0% 9 8 17 52.9%
27 1974 0 2 2 0.0% 4 6 10 40.0% 5 6 11 45.5% 3 5 8 37.5% 1971 36 9 45 80.0% 19 7 26 73.1% 14 5 19 73.7% 6 8 14 42.9%
28 1975 0 2 2 0.0% 3 2 5 60.0% — — — — 0 7 7 0.0% 1972 17 10 27 63.0% 2 2 4 50.0% 9 4 13 69.2% 5 6 11 45.5%
29 1976 1 2 3 33.3% 3 8 11 27.3% — — — — 1 1 2 50.0% 1973 18 8 26 69.2% 5 4 9 55.6% 3 3 6 50.0% 8 4 12 66.7%
30 1977 0 1 1 0.0% 7 8 15 46.7% — — — — 2 4 6 33.3% 1974 2 4 6 33.3% 4 4 8 50.0% 2 2 4 50.0% 3 3 6 50.0%
31 1978 1 3 4 25.0% 19 12 31 61.3% 0 1 1 0.0% 2 6 8 25.0% 1975 0 1 1 0.0% 3 4 7 42.9% — — — — 5 6 11 45.5%
32 1979 0 3 3 0.0% 0 2 2 0.0% — — — — 1 2 3 33.3% 1976 0 1 1 0.0% — — — — — — — — 0 2 2 0.0%
33 1980 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 18 34 52 34.6% 58 63 121 47.9% 11 19 30 36.7% 26 42 68 38.2% — 131 57 188 69.7% 74 34 108 68.5% 90 29 119 75.6% 47 41 88 53.4%

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 Vladimir Zednik Clark Graebner
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 1500 101.6 — — — — — — — 60.0% +0.60 0–1 — — +0.06 — — — — — — — — — — — — — — — —
22 1969 1562 110.4 — — — — +69 — — 58.8% +0.47 1–0 — — +0.42 — — — — — — — — — — — — — — — —
23 1970 1576 112.1 — — — — — -41 -8 44.2% -0.47 3–1 (75%) 3–0 (100%) — +0.55 — — — — — — — — — — — — — — — —
24 1971 1630 112.7 — — — — +20 -4 -140 46.0% -0.41 6–7 (46%) 6–4 (60%) — +2.74 1968 1819 133.7 — — — — +90 -116 +78 73.3% +1.64 10–8 (56%) — — +0.49
25 1972 1654 127.7 — — — — +75 -41 — 47.8% -0.14 5–3 (63%) 10–5 (67%) — +1.73 1969 1841 131.4 — — — — +153 -98 +107 71.5% +1.35 8–5 (62%) 1–0 — +5.30
26 1973 1637 128.2 — — — — +13 +39 -160 42.9% -0.51 2–5 (29%) 3–8 (27%) — -0.89 1970 1841 135.3 — — — — -21 +68 +150 62.4% +0.83 17–8 (68%) 4–2 (67%) — +2.59
27 1974 1636 122.3 — — — — -16 -23 -87 43.5% -0.32 3–7 (30%) 8–5 (62%) — -0.80 1971 1868 141.1 — — — — +44 +29 +136 65.4% +1.01 21–7 (75%) 17–15 (53%) — +5.35
28 1975 1623 129.9 — — — — -78 +27 — 29.0% -0.93 3–1 (75%) 1–6 (14%) — -1.26 1972 1811 136.3 — — — — +27 +71 +133 58.0% +0.62 5–8 (38%) 6–4 (60%) — +3.04
29 1976 1593 122.5 — — — — -42 -10 — 38.1% -0.67 3–6 (33%) 4–3 (57%) — -0.27 1973 1770 134.1 — — — — +58 +80 +109 62.2% +0.84 6–5 (55%) 9–9 (50%) — +3.67
30 1977 1643 134.4 — — — — -94 -5 — 50.8% +0.08 1–10 (9%) 4–5 (44%) — +0.22 1974 1693 114.0 — — — — +41 +100 +143 46.2% -0.38 6–5 (55%) 3–4 (43%) — +1.75
31 1978 1661 140.4 — — — — -123 +79 — 50.0% +0.10 6–8 (43%) 6–10 (38%) — +1.28 1975 1584 111.5 — — — — +73 +121 — 52.4% -0.05 0–5 (0%) 6–3 (67%) — +3.44
32 1979 1583 117.3 — — — — -87 — — 11.8% -2.00 1–0 0–3 (0%) — +0.12 1976 1541 91.6 — — — — +44 — — 0.0% -3.83 — — — +0.51
33 1980 1573 101.3 — — — — — — — 33.3% 0.00 0–1 0–2 — -0.06 — — — — — — — — — — — — — — — —
Career — 1757 133.1 — — — — -7 +19 -94 44.8% -0.30 34–50 (40%) 45–51 (47%) 99.4 +1.45 — 2015 136.6 — — — — +51 +24 +113 64.3% +0.96 73–51 (59%) 46–37 (55%) 100.5 +5.29

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.