H2H data updated: 2026-10-18 00:00 UTC

Zan Guerry vs Allan Stone H2H: 0-1

Allan Stone holds a 1–0 lead over Zan Guerry in their ATP head-to-head. Across 1 main-draw meeting, Allan Stone leads 1–0 on hard courts. Most recently, Allan Stone won the 1977 La Costa round of 64 6-3 6-4.

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Zan Guerry
USA Age 77 Right-Handed
H2H
0 – 1
1 main-draw meetings
Allan Stone
AUS Age 81 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Allan Stone 6-3 6-4 Zan Guerry Match data Mar 23, 1977* R64 La Costa 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
Zan Guerry #490 #98 0 1,598 41 76 35.0% 0 0 0 0 0 0
Allan Stone #199 #38 0 1,884 242 242 50.0% 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 Zan Guerry Allan Stone
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 1–3 25.0% — 1,509 0 0 — — — — — — —
22 1971 4–6 40.0% — 1,511 0 0 1968 38–25 60.3% — 1,656 0 0
23 1972 5–7 41.7% — 1,513 0 0 1969 35–20 63.6% — 1,727 0 0
24 1973 3–5 37.5% #203 1,515 0 0 1970 12–15 44.4% — 1,650 0 0
25 1974 1–1 50.0% #228 1,536 0 0 1971 16–31 34.0% — 1,604 0 0
26 1975 2–2 50.0% #205 1,565 0 0 1972 17–30 36.2% — 1,718 0 0
27 1976 0–6 0.0% #176 1,500 0 0 1973 34–33 50.7% #60 1,672 0 0
28 1977 8–16 33.3% #98 1,562 0 0 1974 17–18 48.6% #49 1,746 0 0
29 1978 2–7 22.2% #279 1,522 0 0 1975 30–21 58.8% #38 1,848 0 0
30 1979 1–3 25.0% #326 1,517 0 0 1976 12–21 36.4% #103 1,740 0 0
31 1980 1–2 33.3% — 1,483 0 0 1977 14–15 48.3% #81 1,667 0 0
32 1981 0–1 0.0% — 1,477 0 0 1978 13–9 59.1% #67 1,799 0 0
33 1982 1–1 50.0% — 1,498 0 0 1979 4–4 50.0% #199 1,738 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 Allan Stone
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 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — —
22 1971 2 2 4 50.0% 2 3 5 40.0% 0 1 1 0.0% — — — — 1968 2 3 5 40.0% 13 12 25 52.0% 23 10 33 69.7% — — — —
23 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — — 1969 2 2 4 50.0% 14 6 20 70.0% 19 12 31 61.3% — — — —
24 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — — 1970 1 4 5 20.0% 6 4 10 60.0% 5 7 12 41.7% — — — —
25 1974 — — — — 1 1 2 50.0% — — — — — — — — 1971 6 8 14 42.9% 6 10 16 37.5% 2 6 8 25.0% 2 7 9 22.2%
26 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — — 1972 3 9 12 25.0% 0 4 4 0.0% 8 3 11 72.7% 6 14 20 30.0%
27 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0% 1973 6 7 13 46.2% 11 11 22 50.0% 14 8 22 63.6% 3 7 10 30.0%
28 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0% 1974 3 5 8 37.5% 3 2 5 60.0% 4 3 7 57.1% 7 8 15 46.7%
29 1978 — — — — 2 3 5 40.0% — — — — 0 4 4 0.0% 1975 17 9 26 65.4% 4 4 8 50.0% 2 2 4 50.0% 7 6 13 53.8%
30 1979 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — 1976 2 4 6 33.3% 2 3 5 40.0% 5 4 9 55.6% 3 10 13 23.1%
31 1980 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — — 1977 5 5 10 50.0% 0 1 1 0.0% 9 7 16 56.3% 0 2 2 0.0%
32 1981 — — — — 0 1 1 0.0% — — — — — — — — 1978 1 2 3 33.3% — — — — 10 5 15 66.7% 2 2 4 50.0%
33 1982 — — — — 1 1 2 50.0% — — — — — — — — 1979 1 2 3 33.3% 0 1 1 0.0% 3 1 4 75.0% — — — —
Career — 6 17 23 26.1% 30 41 71 42.3% 5 11 16 31.2% 0 7 7 0.0% — 49 60 109 45.0% 59 58 117 50.4% 104 68 172 60.5% 30 56 86 34.9%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Allan Stone
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 1509 100.8 — — — — — +67 — 36.4% -1.36 1–2 (33%) — — +0.06 — — — — — — — — — — — — — — — —
22 1971 1512 109.1 — — — — -8 +73 — 34.8% -0.43 2–1 (67%) 0–3 (0%) 99.0 +0.02 1968 1657 115.2 — — — — -149 -115 +82 59.4% +0.68 5–7 (42%) — — +1.10
23 1972 1513 101.7 — — — — -18 +69 — 45.5% -0.03 3–4 (43%) 3–6 (33%) 95.4 +1.00 1969 1727 125.7 — — — — -172 -3 +49 58.4% +0.69 9–6 (60%) — — +2.08
24 1973 1516 109.4 — — — — -6 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) 101.5 +0.71 1970 1650 127.8 — — — — -118 +107 +25 46.5% -0.13 1–3 (25%) 0–4 (0%) 94.2 -0.77
25 1974 1537 108.8 — — — — — — — 50.0% -0.50 — 1–0 — -0.19 1971 1605 134.7 — — — — -3 +48 -17 37.9% -0.50 3–11 (21%) 5–10 (33%) 89.9 -2.95
26 1975 1565 108.3 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08 1972 1719 144.1 — — — — -61 -119 +51 43.5% -0.33 3–10 (23%) 11–12 (48%) 96.0 -4.03
27 1976 1500 112.0 — — — — -21 +41 — 14.3% -1.71 0–1 0–1 — +0.12 1973 1673 128.7 — — — — -48 -71 +118 52.6% +0.37 8–16 (33%) 10–17 (37%) 88.0 +1.60
28 1977 1563 135.9 — — — — -120 +42 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.82 1974 1747 136.3 — — — — -51 -100 +27 51.2% -0.06 1–7 (13%) 6–9 (40%) 93.0 -1.78
29 1978 1523 109.4 — — — — -107 +79 — 37.5% -1.04 1–5 (17%) 2–0 — +0.86 1975 1848 143.5 — — — — +37 -176 -116 56.7% +0.24 9–6 (60%) 8–8 (50%) 105.3 -1.89
30 1979 1518 104.3 — — — — — +61 — 40.0% -0.70 0–2 — — -0.17 1976 1740 146.3 — — — — +15 -53 +7 42.2% -0.40 3–7 (30%) 6–4 (60%) 97.9 -3.31
31 1980 1484 91.9 — — — — — — — 0.0% -3.75 — — — +0.48 1977 1667 122.8 — — — — +13 — +61 52.5% +0.48 4–7 (36%) 2–5 (29%) 92.9 +2.66
32 1981 1478 100.2 — — — — — — — 0.0% -3.50 — — — -0.08 1978 1799 140.3 — — — — -104 — +60 54.7% +0.36 7–4 (64%) 3–3 (50%) 104.0 -1.35
33 1982 1499 109.7 — — — — — — — 40.0% -0.80 1–0 — — -0.23 1979 1739 114.2 — — — — -80 — +136 47.1% +0.18 1–0 1–1 — +1.08
Career — 1598 119.7 — — — — -49 +56 -41 39.9% -0.60 17–28 (38%) 9–15 (38%) 94.7 +0.97 — 1884 138.2 — — — — -28 -46 +57 51.3% +0.19 54–84 (39%) 52–73 (42%) 88.6 -1.58

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.