H2H data updated: 2026-10-21 00:00 UTC

Zan Guerry vs Mike Belkin H2H: 0-2

Mike Belkin holds a 2–0 lead over Zan Guerry in their ATP head-to-head. Across 2 main-draw meetings, Mike Belkin leads 1–0 on clay and 1–0 on hard courts. Most recently, Mike Belkin won the 1971 Tanglewood round of 16 6-3 7-6.

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Zan Guerry
USA Age 77 Right-Handed
H2H
0 – 2
2 main-draw meetings
Mike Belkin
CAN Age 81 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mike Belkin 6-3 7-6 Zan Guerry Match data Jul 28, 1971* R16 Tanglewood ATP 250 Hard
Mike Belkin 6-2 6-3 Zan Guerry Match data Apr 24, 1971* R16 Houston ATP 250 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
Zan Guerry #490 #98 0 1,598 41 76 35.0% 0 0 0 0 0 0
Mike Belkin #222 #128 0 1,770 75 57 56.8% 0 0 0 0 1 1

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 Mike Belkin
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 — — — — — — —
23 1972 5–7 41.7% — 1,513 0 0 1968 20–6 76.9% — 1,680 0 0
24 1973 3–5 37.5% #203 1,515 0 0 1969 21–10 67.7% — 1,736 0 0
25 1974 1–1 50.0% #228 1,536 0 0 1970 6–7 46.2% — 1,677 0 0
26 1975 2–2 50.0% #205 1,565 0 0 1971 20–15 57.1% — 1,719 0 1
27 1976 0–6 0.0% #176 1,500 0 0 1972 3–10 23.1% — 1,664 0 1
28 1977 8–16 33.3% #98 1,562 0 0 1973 3–6 33.3% #161 1,623 0 1
29 1978 2–7 22.2% #279 1,522 0 0 1974 0–1 0.0% #318 1,621 0 1
30 1979 1–3 25.0% #326 1,517 0 0 1975 2–2 50.0% #222 1,642 0 1
31 1980 1–2 33.3% — 1,483 0 0 — — — — — — —
32 1981 0–1 0.0% — 1,477 0 0 — — — — — — —
33 1982 1–1 50.0% — 1,498 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 Mike Belkin
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% — — — — — — — — — — — — — — — — — — — — —
23 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — — 1968 0 1 1 0.0% 14 3 17 82.4% 6 2 8 75.0% — — — —
24 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — — 1969 — — — — 20 9 29 69.0% 1 1 2 50.0% — — — —
25 1974 — — — — 1 1 2 50.0% — — — — — — — — 1970 0 1 1 0.0% 6 5 11 54.5% 0 1 1 0.0% — — — —
26 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — — 1971 6 8 14 42.9% 14 5 19 73.7% — — — — 0 2 2 0.0%
27 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0% 1972 1 2 3 33.3% 2 3 5 40.0% 0 1 1 0.0% 0 4 4 0.0%
28 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0% 1973 1 3 4 25.0% 1 1 2 50.0% — — — — 1 2 3 33.3%
29 1978 — — — — 2 3 5 40.0% — — — — 0 4 4 0.0% 1974 — — — — 0 1 1 0.0% — — — — — — — —
30 1979 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — 1975 2 2 4 50.0% — — — — — — — — — — — —
31 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 — 6 17 23 26.1% 30 41 71 42.3% 5 11 16 31.2% 0 7 7 0.0% — 10 17 27 37.0% 57 27 84 67.9% 7 5 12 58.3% 1 8 9 11.1%

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 Mike Belkin
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 — — — — — — — — — — — — — — — —
23 1972 1513 101.7 — — — — -18 +69 — 45.5% -0.03 3–4 (43%) 3–6 (33%) 95.4 +1.00 1968 1681 114.6 — — — — — +18 -32 66.7% +0.92 1–1 — — +1.63
24 1973 1516 109.4 — — — — -6 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) 101.5 +0.71 1969 1737 118.4 — — — — — +71 — 62.8% +0.41 4–1 (80%) — — +1.74
25 1974 1537 108.8 — — — — — — — 50.0% -0.50 — 1–0 — -0.19 1970 1677 106.9 — — — — — +63 — 44.0% -0.76 1–1 — — +0.42
26 1975 1565 108.3 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08 1971 1720 128.4 — — — — -159 +93 — 59.8% +0.77 4–7 (36%) 3–2 (60%) 96.5 +3.74
27 1976 1500 112.0 — — — — -21 +41 — 14.3% -1.71 0–1 0–1 — +0.12 1972 1664 113.0 — — — — -134 +123 — 29.2% -1.67 1–1 1–0 — -1.61
28 1977 1563 135.9 — — — — -120 +42 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.82 1973 1624 101.0 — — — — -126 — — 35.0% -0.75 1–1 0–1 — +0.97
29 1978 1523 109.4 — — — — -107 +79 — 37.5% -1.04 1–5 (17%) 2–0 — +0.86 1974 1622 109.3 — — — — — — — 0.0% -4.00 — — — -0.41
30 1979 1518 104.3 — — — — — +61 — 40.0% -0.70 0–2 — — -0.17 1975 1643 112.7 — — — — -120 — — 44.4% -0.67 1–0 1–1 — +0.23
31 1980 1484 91.9 — — — — — — — 0.0% -3.75 — — — +0.48 — — — — — — — — — — — — — — — —
32 1981 1478 100.2 — — — — — — — 0.0% -3.50 — — — -0.08 — — — — — — — — — — — — — — — —
33 1982 1499 109.7 — — — — — — — 40.0% -0.80 1–0 — — -0.23 — — — — — — — — — — — — — — — —
Career — 1598 119.7 — — — — -49 +56 -41 39.9% -0.60 17–28 (38%) 9–15 (38%) 94.7 +0.97 — 1770 122.2 — — — — -142 +67 -32 56.2% +0.24 13–12 (52%) 5–4 (56%) 100.3 +5.28

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.