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

Ross Case vs Zan Guerry H2H: 1-0

Ross Case holds a 1–0 lead over Zan Guerry in their ATP head-to-head. Across 1 main-draw meeting, Ross Case leads 1–0 on clay. Most recently, Ross Case won the 1976 US Open round of 128 2-6 6-3 7-5.

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Ross Case
AUS Age 74 Right-Handed
H2H
1 – 0
1 main draw meetings
Zan Guerry
USA Age 77 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ross Case 2-6 6-3 7-5 Zan Guerry Match data Sep 3, 1976* R128 US Open Grand Slam 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
Ross Case #758 #24 0 1,962 293 274 51.7% 0 0 0 0 4 4
Zan Guerry #490 #98 0 1,596 41 77 34.7% 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 Ross Case Zan Guerry
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 3–3 50.0% — 1,519 0 0 — — — — — — —
17 1969 4–4 50.0% — 1,538 0 0 — — — — — — —
18 1970 11–8 57.9% — 1,560 0 0 — — — — — — —
19 1971 26–20 56.5% — 1,637 0 0 1968 4–6 40.0% — 1,476 0 0
20 1972 22–21 51.2% — 1,685 0 0 1969 8–10 44.4% — 1,526 0 0
21 1973 42–34 55.3% #42 1,811 0 1 1970 1–4 20.0% — 1,493 0 0
22 1974 42–27 60.9% #29 1,820 0 2 1971 4–6 40.0% — 1,500 0 0
23 1975 38–21 64.4% #27 1,936 0 4 1972 5–7 41.7% — 1,507 0 0
24 1976 28–24 53.8% #45 1,837 0 4 1973 3–5 37.5% #203 1,511 0 0
25 1977 21–24 46.7% #48 1,749 0 4 1974 1–1 50.0% #228 1,532 0 0
26 1978 14–19 42.4% #86 1,679 0 4 1975 2–2 50.0% #205 1,561 0 0
27 1979 24–26 48.0% #74 1,676 0 4 1976 0–6 0.0% #176 1,497 0 0
28 1980 11–20 35.5% #163 1,621 0 4 1977 8–16 33.3% #98 1,561 0 0
29 1981 5–15 25.0% — 1,502 0 4 1978 2–7 22.2% #279 1,521 0 0
30 1982 1–5 16.7% — 1,467 0 4 1979 1–3 25.0% #326 1,517 0 0
31 1983 1–3 25.0% #415 1,458 0 4 1980 1–2 33.3% — 1,482 0 0
32 — — — — — — — 1981 0–1 0.0% — 1,476 0 0
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 Ross Case Zan Guerry
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 %
16 1968 — — — — — — — — 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
17 1969 — — — — — — — — 4 4 8 50.0% — — — — — — — — — — — — — — — — — — — — —
18 1970 0 2 2 0.0% 1 3 4 25.0% 10 3 13 76.9% — — — — — — — — — — — — — — — — — — — — —
19 1971 10 8 18 55.6% 2 5 7 28.6% 14 7 21 66.7% — — — — 1968 — — — — 3 3 6 50.0% 1 3 4 25.0% — — — —
20 1972 6 7 13 46.2% 0 3 3 0.0% 11 7 18 61.1% 5 4 9 55.6% 1969 0 1 1 0.0% 6 5 11 54.5% 2 4 6 33.3% — — — —
21 1973 10 5 15 66.7% 17 14 31 54.8% 11 7 18 61.1% 4 8 12 33.3% 1970 0 1 1 0.0% 1 3 4 25.0% — — — — — — — —
22 1974 15 13 28 53.6% 8 6 14 57.1% 9 5 14 64.3% 10 3 13 76.9% 1971 2 2 4 50.0% 2 3 5 40.0% 0 1 1 0.0% — — — —
23 1975 21 8 29 72.4% 8 6 14 57.1% 7 2 9 77.8% 2 5 7 28.6% 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — —
24 1976 5 6 11 45.5% 5 4 9 55.6% 8 4 12 66.7% 10 10 20 50.0% 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — —
25 1977 8 8 16 50.0% 0 1 1 0.0% 8 7 15 53.3% 5 8 13 38.5% 1974 — — — — 1 1 2 50.0% — — — — — — — —
26 1978 4 6 10 40.0% 2 2 4 50.0% 6 5 11 54.5% 2 6 8 25.0% 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — —
27 1979 4 7 11 36.4% 10 9 19 52.6% 9 5 14 64.3% 1 5 6 16.7% 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0%
28 1980 2 3 5 40.0% 7 9 16 43.8% 1 4 5 20.0% 1 4 5 20.0% 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0%
29 1981 1 7 8 12.5% 2 4 6 33.3% 2 3 5 40.0% 0 1 1 0.0% 1978 — — — — 2 3 5 40.0% — — — — 0 4 4 0.0%
30 1982 0 1 1 0.0% — — — — 0 2 2 0.0% 1 2 3 33.3% 1979 0 1 1 0.0% 1 2 3 33.3% — — — — — — — —
31 1983 1 2 3 33.3% — — — — — — — — 0 1 1 0.0% 1980 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — —
32 — — — — — — — — — — — — — — — — — 1981 — — — — 0 1 1 0.0% — — — — — — — —
33 — — — — — — — — — — — — — — — — — 1982 — — — — 1 1 2 50.0% — — — — — — — —
Career — 87 83 170 51.2% 62 66 128 48.4% 103 68 171 60.2% 41 57 98 41.8% — 6 17 23 26.1% 30 42 72 41.7% 5 11 16 31.2% 0 7 7 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 Ross Case Zan Guerry
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
16 1968 1519 97.0 — — — — — — +27 50.0% -0.57 1–1 — — +0.29 — — — — — — — — — — — — — — — —
17 1969 1538 111.9 — — — — — — +28 40.0% -0.15 2–0 — — +0.09 — — — — — — — — — — — — — — — —
18 1970 1560 109.1 — — — — — -78 +73 50.0% -0.02 4–2 (67%) 1–1 — +2.54 — — — — — — — — — — — — — — — —
19 1971 1638 118.4 — — — — -15 -130 +69 53.8% +0.08 7–3 (70%) 6–9 (40%) — +3.95 1968 1477 99.0 — — — — — +41 -13 41.7% -0.50 1–1 — — -0.13
20 1972 1685 119.5 — — — — +8 -217 +88 53.0% -0.09 6–6 (50%) 7–2 (78%) — +2.54 1969 1527 112.6 — — — — — +58 -60 47.9% -0.10 3–3 (50%) — — -0.60
21 1973 1811 144.2 — — — — -4 -97 -10 53.1% +0.25 14–8 (64%) 7–15 (32%) — -2.77 1970 1493 96.6 — — — — — +59 — 30.8% -1.92 1–2 (33%) — — +0.15
22 1974 1820 143.4 — — — — +14 -88 +26 57.1% +0.54 13–8 (62%) 12–9 (57%) — -2.23 1971 1500 108.9 — — — — +4 +68 — 34.8% -0.43 2–1 (67%) 0–3 (0%) — +0.04
23 1975 1937 143.0 — — — — +8 -189 -46 59.7% +0.58 15–10 (60%) 11–3 (79%) — +0.72 1972 1507 102.0 — — — — -12 +64 — 45.5% -0.03 3–4 (43%) 3–6 (33%) — +0.98
24 1976 1837 150.4 — — — — +17 -79 +82 54.5% +0.20 7–11 (39%) 13–14 (48%) — -3.31 1973 1511 109.4 — — — — -1 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) — +0.71
25 1977 1750 141.1 — — — — +2 — +96 44.0% -0.15 9–6 (60%) 5–8 (38%) — -3.52 1974 1533 109.0 — — — — — — — 50.0% -0.50 — 1–0 — -0.19
26 1978 1679 126.3 — — — — -11 +32 +126 46.0% -0.43 7–11 (39%) 6–4 (60%) — +0.45 1975 1562 108.4 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08
27 1979 1676 135.6 — — — — -77 +31 +155 47.7% -0.18 9–8 (53%) 6–10 (38%) — -2.48 1976 1497 112.0 — — — — -18 +37 — 14.3% -1.71 0–1 0–1 — +0.12
28 1980 1621 128.5 — — — — -49 +77 +125 40.5% -0.63 4–6 (40%) 5–7 (42%) — -0.60 1977 1561 136.0 — — — — -118 +40 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.81
29 1981 1503 104.6 — — — — -34 +123 +209 31.4% -1.16 2–5 (29%) 1–4 (20%) — +1.19 1978 1522 109.4 — — — — -106 +76 — 37.5% -1.04 1–5 (17%) 2–0 — +0.86
30 1982 1467 105.7 — — — — +2 — — 25.0% -1.12 1–1 0–2 — +0.37 1979 1517 104.3 — — — — — +60 — 40.0% -0.70 0–2 — — -0.17
31 1983 1459 103.5 — — — — -6 — — 36.4% -0.82 1–2 (33%) 2–3 (40%) — +0.31 1980 1483 91.9 — — — — — — — 0.0% -3.75 — — — +0.48
32 — — — — — — — — — — — — — — — — 1981 1477 100.2 — — — — — — — 0.0% -3.50 — — — -0.08
33 — — — — — — — — — — — — — — — — 1982 1498 109.7 — — — — — — — 40.0% -0.80 1–0 — — -0.23
Career — 1962 139.3 — — — — -4 -53 +70 50.7% +0.02 102–88 (54%) 82–91 (47%) 99.4 -0.44 — 1596 119.1 — — — — -44 +53 -41 39.6% -0.63 17–28 (38%) 9–15 (38%) 94.9 +1.04

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.