H2H data updated: 2026-09-05 00:00 UTC

Tony Giammalva vs Butch Walts H2H: 2-0

Tony Giammalva holds a 2–0 lead over Butch Walts in their ATP head-to-head. Across 2 main-draw meetings, Tony Giammalva leads 2–0 on carpet. Most recently, Tony Giammalva won the 1981 Denver round of 16 7-6 4-6 6-3.

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Tony Giammalva
USA Age 68 Right-Handed 190 cm / 6'3"
H2H
2 – 0
2 main draw meetings
Butch Walts
USA Age 71 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Tony Giammalva #71 7-6 4-6 6-3 Butch Walts #54 Match data Mar 6, 1981* R16 Denver ATP 250 Carpet
Tony Giammalva #72 6-4 3-6 6-3 Butch Walts #67 Match data Jan 29, 1981* R32 Philadelphia ATP 250 Carpet

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
Tony Giammalva #692 #54 0 1,737 54 78 40.9% 0 0 0 0 0 0
Butch Walts #755 #30 0 1,915 140 135 50.9% 0 0 0 0 4 4

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 Tony Giammalva Butch Walts
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1976 0–1 0.0% #310 1,480 0 0 — — — — — — —
19 1977 1–3 25.0% #322 1,481 0 0 — — — — — — —
20 1978 0–1 0.0% #200 1,481 0 0 1975 0–3 0.0% #396 1,482 0 0
21 — — — — — — — 1976 16–13 55.2% #79 1,667 0 1
22 1980 13–12 52.0% #71 1,609 0 0 1977 21–19 52.5% #50 1,760 0 2
23 1981 17–21 44.7% #78 1,681 0 0 1978 13–20 39.4% #116 1,661 0 2
24 1982 10–16 38.5% #81 1,646 0 0 1979 40–22 64.5% #39 1,870 0 4
25 1983 7–11 38.9% #177 1,613 0 0 1980 22–23 48.9% #47 1,808 0 4
26 1984 6–11 35.3% #119 1,588 0 0 1981 15–17 46.9% #85 1,707 0 4
27 1985 0–2 0.0% #691 1,567 0 0 1982 3–5 37.5% #99 1,681 0 4
28 — — — — — — — 1983 9–10 47.4% #473 1,679 0 4
29 — — — — — — — 1984 1–3 25.0% #311 1,658 0 4

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 Tony Giammalva Butch Walts
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 %
18 1976 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 1977 — — — — 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — — — — — —
20 1978 — — — — 0 1 1 0.0% — — — — — — — — 1975 — — — — 0 2 2 0.0% — — — — 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 1976 9 6 15 60.0% 0 1 1 0.0% 0 1 1 0.0% 7 5 12 58.3%
22 1980 5 5 10 50.0% 8 6 14 57.1% 0 1 1 0.0% — — — — 1977 2 6 8 25.0% 4 4 8 50.0% 7 4 11 63.6% 8 5 13 61.5%
23 1981 4 7 11 36.4% 6 6 12 50.0% 2 2 4 50.0% 5 6 11 45.5% 1978 9 6 15 60.0% 2 3 5 40.0% — — — — 2 11 13 15.4%
24 1982 1 1 2 50.0% 3 6 9 33.3% 3 3 6 50.0% 3 6 9 33.3% 1979 19 11 30 63.3% 3 5 8 37.5% — — — — 18 6 24 75.0%
25 1983 2 3 5 40.0% 0 1 1 0.0% 3 4 7 42.9% 2 3 5 40.0% 1980 9 6 15 60.0% 1 2 3 33.3% 2 3 5 40.0% 10 12 22 45.5%
26 1984 5 6 11 45.5% 0 2 2 0.0% 0 2 2 0.0% 1 1 2 50.0% 1981 5 5 10 50.0% 3 2 5 60.0% 0 2 2 0.0% 7 8 15 46.7%
27 1985 — — — — — — — — 0 1 1 0.0% 0 1 1 0.0% 1982 1 4 5 20.0% — — — — — — — — 2 1 3 66.7%
28 — — — — — — — — — — — — — — — — — 1983 2 5 7 28.6% — — — — 0 1 1 0.0% 7 4 11 63.6%
29 — — — — — — — — — — — — — — — — — 1984 0 1 1 0.0% 0 1 1 0.0% — — — — 1 1 2 50.0%
Career — 17 22 39 43.6% 18 26 44 40.9% 8 13 21 38.1% 11 17 28 39.3% — 56 50 106 52.8% 13 20 33 39.4% 9 11 20 45.0% 62 54 116 53.4%

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 Tony Giammalva Butch Walts
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
18 1976 1480 96.3 — — — — — — — 0.0% -4.00 — — — +0.15 — — — — — — — — — — — — — — — —
19 1977 1481 106.0 — — — — — +34 — 22.2% -2.22 1–0 0–1 — -0.12 — — — — — — — — — — — — — — — —
20 1978 1481 113.9 — — — — — — — 0.0% -5.50 — — — -0.26 1975 1483 98.8 — — — — — — — 0.0% -3.75 — — — 0.00
21 — — — — — — — — — — — — — — — — 1976 1668 134.5 — — — — +66 — — 52.9% -0.10 6–3 (67%) 6–6 (50%) 103.8 +0.37
22 1980 1610 126.0 — — — — +3 -26 — 59.3% +0.44 3–6 (33%) 3–2 (60%) 99.9 +1.80 1977 1760 136.6 — — — — +14 -163 -178 51.5% -0.20 7–7 (50%) 10–3 (77%) 107.2 +0.08
23 1981 1682 143.3 — — — — -40 -27 -79 48.0% -0.34 4–8 (33%) 6–5 (55%) 101.3 -1.80 1978 1661 120.5 — — — — +38 -90 — 41.0% -0.82 4–5 (44%) 6–7 (46%) 100.5 +2.44
24 1982 1646 130.6 — — — — +10 -25 -45 42.6% -0.64 2–5 (29%) 2–4 (33%) 94.9 -1.10 1979 1871 154.6 — — — — +71 -274 — 60.0% +0.68 15–7 (68%) 14–10 (58%) 108.8 +0.43
25 1983 1613 129.1 — — — — +27 — +5 42.3% -0.15 3–4 (43%) 7–8 (47%) 98.4 +0.71 1980 1808 150.4 — — — — +41 -210 -193 49.5% -0.08 4–7 (36%) 8–8 (50%) 94.4 -4.84
26 1984 1589 123.3 — — — — +49 — — 41.7% -0.33 3–5 (38%) 3–1 (75%) 101.3 -0.19 1981 1708 135.2 — — — — +45 -82 — 46.3% -0.18 7–7 (50%) 9–10 (47%) 94.3 +0.04
27 1985 1567 103.0 — — — — — — — 0.0% -3.60 — — — -0.17 1982 1681 118.9 — — — — +33 — — 36.8% -1.16 1–0 1–0 — -0.15
28 — — — — — — — — — — — — — — — — 1983 1680 127.1 — — — — +24 — — 45.7% -0.04 5–3 (63%) 3–4 (43%) 103.7 +0.79
29 — — — — — — — — — — — — — — — — 1984 1659 107.4 — — — — +24 — — 33.3% -1.22 0–1 1–1 — -0.15
Career — 1737 137.7 — — — — +3 -20 -32 45.2% -0.38 16–28 (36%) 21–21 (50%) 98.6 -0.75 — 1915 145.5 — — — — +47 -172 -183 50.0% -0.09 49–40 (55%) 58–49 (54%) 105.5 -0.36

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.