H2H data updated: 2026-09-04 00:00 UTC

Blaine Willenborg vs Zan Guerry H2H: 1-0

Blaine Willenborg holds a 1–0 lead over Zan Guerry in their ATP head-to-head. Across 1 main-draw meeting, Blaine Willenborg leads 1–0 on clay. Most recently, Blaine Willenborg won the 1980 South Orange round of 32 6-2 6-3.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Blaine Willenborg
USA Age 66 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main draw meetings
Zan Guerry
USA Age 77 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Blaine Willenborg 6-2 6-3 Zan Guerry Match data Jul 31, 1980* R32 South Orange 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
Blaine Willenborg #1,067 #50 0 1,624 33 54 37.9% 0 0 0 0 0 0
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 Blaine Willenborg Zan Guerry
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 1979 0–1 0.0% #579 1,488 0 0 1968 4–6 40.0% — 1,476 0 0
20 1980 3–5 37.5% #283 1,514 0 0 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 1983 1–3 25.0% — 1,524 0 0 1972 5–7 41.7% — 1,507 0 0
24 1984 6–10 37.5% #79 1,533 0 0 1973 3–5 37.5% #203 1,511 0 0
25 1985 8–12 40.0% #188 1,578 0 0 1974 1–1 50.0% #228 1,532 0 0
26 1986 5–9 35.7% #160 1,535 0 0 1975 2–2 50.0% #205 1,561 0 0
27 1987 10–11 47.6% #145 1,588 0 0 1976 0–6 0.0% #176 1,497 0 0
28 1988 0–3 0.0% #731 1,547 0 0 1977 8–16 33.3% #98 1,561 0 0
29 — — — — — — — 1978 2–7 22.2% #279 1,521 0 0
30 — — — — — — — 1979 1–3 25.0% #326 1,517 0 0
31 — — — — — — — 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 Blaine Willenborg 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 %
19 1979 — — — — 0 1 1 0.0% — — — — — — — — 1968 — — — — 3 3 6 50.0% 1 3 4 25.0% — — — —
20 1980 1 2 3 33.3% 2 3 5 40.0% — — — — — — — — 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 1983 1 2 3 33.3% 0 1 1 0.0% — — — — — — — — 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — —
24 1984 0 2 2 0.0% 6 7 13 46.2% 0 1 1 0.0% — — — — 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — —
25 1985 1 2 3 33.3% 7 10 17 41.2% — — — — — — — — 1974 — — — — 1 1 2 50.0% — — — — — — — —
26 1986 1 1 2 50.0% 4 7 11 36.4% — — — — 0 1 1 0.0% 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — —
27 1987 4 5 9 44.4% 4 5 9 44.4% — — — — 2 1 3 66.7% 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0%
28 1988 0 1 1 0.0% 0 1 1 0.0% — — — — 0 1 1 0.0% 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0%
29 — — — — — — — — — — — — — — — — — 1978 — — — — 2 3 5 40.0% — — — — 0 4 4 0.0%
30 — — — — — — — — — — — — — — — — — 1979 0 1 1 0.0% 1 2 3 33.3% — — — — — — — —
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 — 8 15 23 34.8% 23 35 58 39.7% 0 1 1 0.0% 2 3 5 40.0% — 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 Blaine Willenborg 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
19 1979 1488 100.7 — — — — — — — 33.3% -1.00 0–1 — — +0.07 1968 1477 99.0 — — — — — +41 -13 41.7% -0.50 1–1 — — -0.13
20 1980 1514 103.6 — — — — +42 +1 — 33.3% -0.95 2–0 0–1 — +0.52 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%) 99.1 +0.04
23 1983 1524 117.1 — — — — +36 — — 25.0% -0.75 — 1–3 (25%) — -0.68 1972 1507 102.0 — — — — -12 +64 — 45.5% -0.03 3–4 (43%) 3–6 (33%) 95.6 +0.98
24 1984 1533 127.2 — — — — — +52 — 39.0% -0.66 3–4 (43%) 3–1 (75%) 102.4 -0.13 1973 1511 109.4 — — — — -1 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) 101.5 +0.71
25 1985 1578 123.2 — — — — -54 +29 — 43.1% -0.71 3–5 (38%) 6–4 (60%) 101.6 +0.25 1974 1533 109.0 — — — — — — — 50.0% -0.50 — 1–0 — -0.19
26 1986 1535 110.9 — — — — -23 +43 — 41.7% -0.70 2–4 (33%) 4–3 (57%) 98.9 +1.19 1975 1562 108.4 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08
27 1987 1588 119.3 — — — — -22 -7 — 44.0% -0.44 5–2 (71%) 3–3 (50%) 105.1 +0.52 1976 1497 112.0 — — — — -18 +37 — 14.3% -1.71 0–1 0–1 — +0.12
28 1988 1548 103.4 — — — — — — — 25.0% -1.63 0–2 0–1 — +0.09 1977 1561 136.0 — — — — -118 +40 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.81
29 — — — — — — — — — — — — — — — — 1978 1522 109.4 — — — — -106 +76 — 37.5% -1.04 1–5 (17%) 2–0 — +0.86
30 — — — — — — — — — — — — — — — — 1979 1517 104.3 — — — — — +60 — 40.0% -0.70 0–2 — — -0.17
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 — 1624 124.4 — — — — -11 +29 — 39.9% -0.70 15–18 (45%) 17–16 (52%) 103.3 +2.10 — 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.