H2H data updated: 2026-09-03 00:00 UTC

Butch Walts vs Zan Guerry H2H: 1-0

Butch Walts holds a 1–0 lead over Zan Guerry in their ATP head-to-head. Across 1 main-draw meeting, Butch Walts leads 1–0 on clay. Most recently, Butch Walts won the 1979 North Conway round of 64 6-1 6-2.

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Butch Walts
USA Age 71 Right-Handed 193 cm / 6'4"
H2H
1 – 0
1 main draw meetings
Zan Guerry
USA Age 77 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Butch Walts #48 6-1 6-2 Zan Guerry Match data Jul 31, 1979* R64 North Conway 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
Butch Walts #755 #30 0 1,915 140 135 50.9% 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 Butch Walts Zan Guerry
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 1968 4–6 40.0% — 1,476 0 0
20 1975 0–3 0.0% #396 1,482 0 0 1969 8–10 44.4% — 1,526 0 0
21 1976 16–13 55.2% #79 1,667 0 1 1970 1–4 20.0% — 1,493 0 0
22 1977 21–19 52.5% #50 1,760 0 2 1971 4–6 40.0% — 1,500 0 0
23 1978 13–20 39.4% #116 1,661 0 2 1972 5–7 41.7% — 1,507 0 0
24 1979 40–22 64.5% #39 1,870 0 4 1973 3–5 37.5% #203 1,511 0 0
25 1980 22–23 48.9% #47 1,808 0 4 1974 1–1 50.0% #228 1,532 0 0
26 1981 15–17 46.9% #85 1,707 0 4 1975 2–2 50.0% #205 1,561 0 0
27 1982 3–5 37.5% #99 1,681 0 4 1976 0–6 0.0% #176 1,497 0 0
28 1983 9–10 47.4% #473 1,679 0 4 1977 8–16 33.3% #98 1,561 0 0
29 1984 1–3 25.0% #311 1,658 0 4 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 Butch Walts 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 — — — — — — — — — — — — — — — — — 1968 — — — — 3 3 6 50.0% 1 3 4 25.0% — — — —
20 1975 — — — — 0 2 2 0.0% — — — — 0 1 1 0.0% 1969 0 1 1 0.0% 6 5 11 54.5% 2 4 6 33.3% — — — —
21 1976 9 6 15 60.0% 0 1 1 0.0% 0 1 1 0.0% 7 5 12 58.3% 1970 0 1 1 0.0% 1 3 4 25.0% — — — — — — — —
22 1977 2 6 8 25.0% 4 4 8 50.0% 7 4 11 63.6% 8 5 13 61.5% 1971 2 2 4 50.0% 2 3 5 40.0% 0 1 1 0.0% — — — —
23 1978 9 6 15 60.0% 2 3 5 40.0% — — — — 2 11 13 15.4% 1972 1 2 3 33.3% 4 4 8 50.0% 0 1 1 0.0% — — — —
24 1979 19 11 30 63.3% 3 5 8 37.5% — — — — 18 6 24 75.0% 1973 2 4 6 33.3% — — — — 1 1 2 50.0% — — — —
25 1980 9 6 15 60.0% 1 2 3 33.3% 2 3 5 40.0% 10 12 22 45.5% 1974 — — — — 1 1 2 50.0% — — — — — — — —
26 1981 5 5 10 50.0% 3 2 5 60.0% 0 2 2 0.0% 7 8 15 46.7% 1975 1 1 2 50.0% 1 1 2 50.0% — — — — — — — —
27 1982 1 4 5 20.0% — — — — — — — — 2 1 3 66.7% 1976 0 2 2 0.0% 0 3 3 0.0% — — — — 0 1 1 0.0%
28 1983 2 5 7 28.6% — — — — 0 1 1 0.0% 7 4 11 63.6% 1977 0 3 3 0.0% 8 11 19 42.1% — — — — 0 2 2 0.0%
29 1984 0 1 1 0.0% 0 1 1 0.0% — — — — 1 1 2 50.0% 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 — 56 50 106 52.8% 13 20 33 39.4% 9 11 20 45.0% 62 54 116 53.4% — 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 Butch Walts 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 — — — — — — — — — — — — — — — — 1968 1477 99.0 — — — — — +41 -13 41.7% -0.50 1–1 — — -0.13
20 1975 1483 98.8 — — — — — — — 0.0% -3.75 — — — 0.00 1969 1527 112.6 — — — — — +58 -60 47.9% -0.10 3–3 (50%) — — -0.60
21 1976 1668 134.5 — — — — +66 — — 52.9% -0.10 6–3 (67%) 6–6 (50%) — +0.37 1970 1493 96.6 — — — — — +59 — 30.8% -1.92 1–2 (33%) — — +0.15
22 1977 1760 136.6 — — — — +14 -163 -178 51.5% -0.20 7–7 (50%) 10–3 (77%) — +0.08 1971 1500 108.9 — — — — +4 +68 — 34.8% -0.43 2–1 (67%) 0–3 (0%) — +0.04
23 1978 1661 120.5 — — — — +38 -90 — 41.0% -0.82 4–5 (44%) 6–7 (46%) — +2.44 1972 1507 102.0 — — — — -12 +64 — 45.5% -0.03 3–4 (43%) 3–6 (33%) — +0.98
24 1979 1871 154.6 — — — — +71 -274 — 60.0% +0.68 15–7 (68%) 14–10 (58%) — +0.43 1973 1511 109.4 — — — — -1 — — 45.8% -0.17 2–3 (40%) 2–2 (50%) — +0.71
25 1980 1808 150.4 — — — — +41 -210 -193 49.5% -0.08 4–7 (36%) 8–8 (50%) — -4.84 1974 1533 109.0 — — — — — — — 50.0% -0.50 — 1–0 — -0.19
26 1981 1708 135.2 — — — — +45 -82 — 46.3% -0.18 7–7 (50%) 9–10 (47%) — +0.04 1975 1562 108.4 — — — — — — — 44.4% -0.22 1–0 0–1 — +0.08
27 1982 1681 118.9 — — — — +33 — — 36.8% -1.16 1–0 1–0 — -0.15 1976 1497 112.0 — — — — -18 +37 — 14.3% -1.71 0–1 0–1 — +0.12
28 1983 1680 127.1 — — — — +24 — — 45.7% -0.04 5–3 (63%) 3–4 (43%) — +0.79 1977 1561 136.0 — — — — -118 +40 — 39.3% -0.73 2–6 (25%) 1–2 (33%) — -0.81
29 1984 1659 107.4 — — — — +24 — — 33.3% -1.22 0–1 1–1 — -0.15 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 — 1915 145.5 — — — — +47 -172 -183 50.0% -0.09 49–40 (55%) 58–49 (54%) 105.5 -0.36 — 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.