H2H data updated: 2026-09-02 00:00 UTC

Zan Guerry vs Clark Graebner H2H: 0-1

Clark Graebner holds a 1–0 lead over Zan Guerry in their ATP head-to-head. Across 1 main-draw meeting, Clark Graebner leads 1–0 on grass. Most recently, Clark Graebner won the 1969 Boston second round 6-3 6-2.

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Zan Guerry
USA Age 77 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 6-3 6-2 Zan Guerry Match data Aug 18, 1969* R64 Boston 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
Zan Guerry #490 #98 0 1,596 41 77 34.7% 0 0 0 0 0 0
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 Zan Guerry Clark Graebner
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 1968 4–6 40.0% — 1,476 0 0 — — — — — — —
20 1969 8–10 44.4% — 1,526 0 0 — — — — — — —
21 1970 1–4 20.0% — 1,493 0 0 — — — — — — —
22 1971 4–6 40.0% — 1,500 0 0 — — — — — — —
23 1972 5–7 41.7% — 1,507 0 0 — — — — — — —
24 1973 3–5 37.5% #203 1,511 0 0 1968 74–22 77.1% — 1,818 0 2
25 1974 1–1 50.0% #228 1,532 0 0 1969 49–14 77.8% — 1,840 0 6
26 1975 2–2 50.0% #205 1,561 0 0 1970 58–28 67.4% — 1,840 0 8
27 1976 0–6 0.0% #176 1,497 0 0 1971 75–29 72.1% — 1,868 0 11
28 1977 8–16 33.3% #98 1,561 0 0 1972 33–22 60.0% — 1,811 0 11
29 1978 2–7 22.2% #279 1,521 0 0 1973 34–19 64.2% #48 1,770 0 12
30 1979 1–3 25.0% #326 1,517 0 0 1974 11–13 45.8% #99 1,693 0 12
31 1980 1–2 33.3% — 1,482 0 0 1975 8–11 42.1% #120 1,583 0 12
32 1981 0–1 0.0% — 1,476 0 0 1976 0–3 0.0% #199 1,540 0 12
33 1982 1–1 50.0% — 1,497 0 0 — — — — — — —

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 Zan Guerry 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 %
19 1968 — — — — 3 3 6 50.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
20 1969 0 1 1 0.0% 6 5 11 54.5% 2 4 6 33.3% — — — — — — — — — — — — — — — — — — — — —
21 1970 0 1 1 0.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — — — — — —
22 1971 2 2 4 50.0% 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
23 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
24 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — — 1968 30 11 41 73.2% 9 3 12 75.0% 28 6 34 82.4% 7 2 9 77.8%
25 1974 — — — — 1 1 2 50.0% — — — — — — — — 1969 13 2 15 86.7% 10 4 14 71.4% 22 6 28 78.6% 4 2 6 66.7%
26 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — — 1970 15 11 26 57.7% 22 6 28 78.6% 12 3 15 80.0% 9 8 17 52.9%
27 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0% 1971 36 9 45 80.0% 19 7 26 73.1% 14 5 19 73.7% 6 8 14 42.9%
28 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0% 1972 17 10 27 63.0% 2 2 4 50.0% 9 4 13 69.2% 5 6 11 45.5%
29 1978 — — — — 2 3 5 40.0% — — — — 0 4 4 0.0% 1973 18 8 26 69.2% 5 4 9 55.6% 3 3 6 50.0% 8 4 12 66.7%
30 1979 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — 1974 2 4 6 33.3% 4 4 8 50.0% 2 2 4 50.0% 3 3 6 50.0%
31 1980 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — — 1975 0 1 1 0.0% 3 4 7 42.9% — — — — 5 6 11 45.5%
32 1981 — — — — 0 1 1 0.0% — — — — — — — — 1976 0 1 1 0.0% — — — — — — — — 0 2 2 0.0%
33 1982 — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 6 17 23 26.1% 30 42 72 41.7% 5 11 16 31.2% 0 7 7 0.0% — 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 Zan Guerry 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
19 1968 1477 99.0 — — — — — +41 -13 41.7% -0.50 1–1 — — -0.13 — — — — — — — — — — — — — — — —
20 1969 1527 112.6 — — — — — +58 -60 47.9% -0.10 3–3 (50%) — — -0.60 — — — — — — — — — — — — — — — —
21 1970 1493 96.6 — — — — — +59 — 30.8% -1.92 1–2 (33%) — — +0.15 — — — — — — — — — — — — — — — —
22 1971 1500 108.9 — — — — +4 +68 — 34.8% -0.43 2–1 (67%) 0–3 (0%) — +0.04 — — — — — — — — — — — — — — — —
23 1972 1507 102.0 — — — — -12 +64 — 45.5% -0.03 3–4 (43%) 3–6 (33%) — +0.98 — — — — — — — — — — — — — — — —
24 1973 1511 109.4 — — — — -1 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) — +0.71 1968 1819 133.7 — — — — +90 -116 +78 73.3% +1.64 10–8 (56%) — — +0.49
25 1974 1533 109.0 — — — — — — — 50.0% -0.50 — 1–0 — -0.19 1969 1841 131.4 — — — — +153 -98 +107 71.5% +1.35 8–5 (62%) 1–0 — +5.30
26 1975 1562 108.4 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08 1970 1841 135.3 — — — — -21 +68 +150 62.4% +0.83 17–8 (68%) 4–2 (67%) — +2.59
27 1976 1497 112.0 — — — — -18 +37 — 14.3% -1.71 0–1 0–1 — +0.12 1971 1868 141.1 — — — — +44 +29 +136 65.4% +1.01 21–7 (75%) 17–15 (53%) — +5.35
28 1977 1561 136.0 — — — — -118 +40 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.81 1972 1811 136.3 — — — — +27 +71 +133 58.0% +0.62 5–8 (38%) 6–4 (60%) — +3.04
29 1978 1522 109.4 — — — — -106 +76 — 37.5% -1.04 1–5 (17%) 2–0 — +0.86 1973 1770 134.1 — — — — +58 +80 +109 62.2% +0.84 6–5 (55%) 9–9 (50%) — +3.67
30 1979 1517 104.3 — — — — — +60 — 40.0% -0.70 0–2 — — -0.17 1974 1693 114.0 — — — — +41 +100 +143 46.2% -0.38 6–5 (55%) 3–4 (43%) — +1.75
31 1980 1483 91.9 — — — — — — — 0.0% -3.75 — — — +0.48 1975 1584 111.5 — — — — +73 +121 — 52.4% -0.05 0–5 (0%) 6–3 (67%) — +3.44
32 1981 1477 100.2 — — — — — — — 0.0% -3.50 — — — -0.08 1976 1541 91.6 — — — — +44 — — 0.0% -3.83 — — — +0.51
33 1982 1498 109.7 — — — — — — — 40.0% -0.80 1–0 — — -0.23 — — — — — — — — — — — — — — — —
Career — 1596 119.1 — — — — -44 +53 -41 39.6% -0.63 17–28 (38%) 9–15 (38%) 94.9 +1.04 — 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.