H2H data updated: 2026-09-10 00:00 UTC

Colin Dowdeswell vs Tony Giammalva H2H: 0-1

Tony Giammalva holds a 1–0 lead over Colin Dowdeswell in their ATP head-to-head. Across 1 main-draw meeting, Tony Giammalva leads 1–0 on clay. Most recently, Tony Giammalva won the 1980 Swiss Open Gstaad round of 32 3-6 6-1 6-3.

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Colin Dowdeswell
GBR Age 71 Right-Handed 185 cm / 6'1"
H2H
0 – 1
1 main-draw meetings
Tony Giammalva
USA Age 68 Right-Handed 190 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Tony Giammalva #81 3-6 6-1 6-3 Colin Dowdeswell Match data Jul 10, 1980* R32 Swiss Open Gstaad 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
Colin Dowdeswell #901 #31 0 1,730 119 174 40.6% 0 0 0 0 1 1
Tony Giammalva #692 #54 0 1,737 54 78 40.9% 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 Colin Dowdeswell Tony Giammalva
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1972 1–1 50.0% — 1,504 0 0 — — — — — — —
18 1973 4–5 44.4% #148 1,522 0 0 1976 0–1 0.0% #310 1,480 0 0
19 1974 4–4 50.0% #138 1,537 0 0 1977 1–3 25.0% #322 1,481 0 0
20 1975 22–24 47.8% #85 1,611 0 1 1978 0–1 0.0% #200 1,481 0 0
21 1976 14–26 35.0% #122 1,626 0 1 — — — — — — —
22 1977 9–13 40.9% #94 1,576 0 1 1980 13–12 52.0% #71 1,609 0 0
23 1978 20–22 47.6% #75 1,652 0 1 1981 17–21 44.7% #78 1,681 0 0
24 1979 12–16 42.9% #104 1,616 0 1 1982 10–16 38.5% #81 1,646 0 0
25 1980 1–13 7.1% #269 1,492 0 1 1983 7–11 38.9% #177 1,613 0 0
26 — — — — — — — 1984 6–11 35.3% #119 1,588 0 0
27 1982 2–4 33.3% — 1,520 0 1 1985 0–2 0.0% #691 1,567 0 0
28 1983 17–10 63.0% #33 1,717 0 1 — — — — — — —
29 1984 10–24 29.4% #179 1,608 0 1 — — — — — — —
30 1985 2–11 15.4% #258 1,476 0 1 — — — — — — —
31 1986 1–1 50.0% #414 1,511 0 1 — — — — — — —

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 Colin Dowdeswell Tony Giammalva
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 %
17 1972 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 1973 2 1 3 66.7% 2 2 4 50.0% 0 2 2 0.0% — — — — 1976 — — — — 0 1 1 0.0% — — — — — — — —
19 1974 1 1 2 50.0% 0 1 1 0.0% 0 1 1 0.0% 3 1 4 75.0% 1977 — — — — 1 3 4 25.0% — — — — — — — —
20 1975 2 2 4 50.0% 20 19 39 51.3% 0 1 1 0.0% 0 2 2 0.0% 1978 — — — — 0 1 1 0.0% — — — — — — — —
21 1976 2 4 6 33.3% 10 16 26 38.5% 1 2 3 33.3% 1 4 5 20.0% — — — — — — — — — — — — — — — — —
22 1977 1 2 3 33.3% 7 10 17 41.2% 1 1 2 50.0% — — — — 1980 5 5 10 50.0% 8 6 14 57.1% 0 1 1 0.0% — — — —
23 1978 10 6 16 62.5% 9 14 23 39.1% 1 1 2 50.0% 0 1 1 0.0% 1981 4 7 11 36.4% 6 6 12 50.0% 2 2 4 50.0% 5 6 11 45.5%
24 1979 5 9 14 35.7% 6 5 11 54.5% 1 1 2 50.0% 0 1 1 0.0% 1982 1 1 2 50.0% 3 6 9 33.3% 3 3 6 50.0% 3 6 9 33.3%
25 1980 1 2 3 33.3% 0 10 10 0.0% 0 1 1 0.0% — — — — 1983 2 3 5 40.0% 0 1 1 0.0% 3 4 7 42.9% 2 3 5 40.0%
26 — — — — — — — — — — — — — — — — — 1984 5 6 11 45.5% 0 2 2 0.0% 0 2 2 0.0% 1 1 2 50.0%
27 1982 — — — — 0 2 2 0.0% 1 1 2 50.0% 1 1 2 50.0% 1985 — — — — — — — — 0 1 1 0.0% 0 1 1 0.0%
28 1983 8 3 11 72.7% 9 5 14 64.3% — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — —
29 1984 4 5 9 44.4% 2 9 11 18.2% 4 5 9 44.4% 0 5 5 0.0% — — — — — — — — — — — — — — — — —
30 1985 2 5 7 28.6% 0 1 1 0.0% 0 5 5 0.0% — — — — — — — — — — — — — — — — — — — — —
31 1986 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
Career — 39 41 80 48.8% 65 94 159 40.9% 10 22 32 31.2% 5 17 22 22.7% — 17 22 39 43.6% 18 26 44 40.9% 8 13 21 38.1% 11 17 28 39.3%

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 Colin Dowdeswell Tony Giammalva
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
17 1972 1505 99.4 — — — — — — — 57.1% -0.57 — 3–0 (100%) — +0.01 — — — — — — — — — — — — — — — —
18 1973 1522 117.3 — — — — +87 +60 — 47.6% -0.19 0–1 — — +0.51 1976 1480 96.3 — — — — — — — 0.0% -4.00 — — — +0.15
19 1974 1538 103.5 — — — — +109 — — 50.0% -0.39 1–1 1–1 — +1.37 1977 1481 106.0 — — — — — +34 — 22.2% -2.22 1–0 0–1 — -0.12
20 1975 1612 121.7 — — — — -27 +57 — 45.4% -0.20 4–8 (33%) 5–2 (71%) 98.8 +4.06 1978 1481 113.9 — — — — — — — 0.0% -5.50 — — — -0.26
21 1976 1626 126.9 — — — — -78 +49 -171 39.4% -0.75 5–9 (36%) 7–4 (64%) 99.4 +0.37 — — — — — — — — — — — — — — — —
22 1977 1577 118.3 — — — — -40 +40 — 43.9% -0.53 4–4 (50%) 3–4 (43%) 100.3 +1.17 1980 1610 126.0 — — — — +3 -26 — 59.3% +0.44 3–6 (33%) 3–2 (60%) 99.9 +1.80
23 1978 1652 125.6 — — — — +16 -49 — 43.1% -0.41 13–5 (72%) 4–10 (29%) 108.9 +1.98 1981 1682 143.3 — — — — -40 -27 -79 48.0% -0.34 4–8 (33%) 6–5 (55%) 101.3 -1.80
24 1979 1617 120.0 — — — — -46 +21 — 43.1% -0.64 5–5 (50%) 7–5 (58%) 101.9 -0.02 1982 1646 130.6 — — — — +10 -25 -45 42.6% -0.64 2–5 (29%) 2–4 (33%) 94.9 -1.10
25 1980 1493 109.7 — — — — +86 +3 — 17.6% -2.09 0–4 (0%) 1–1 — -0.29 1983 1613 129.1 — — — — +27 — +5 42.3% -0.15 3–4 (43%) 7–8 (47%) 98.4 +0.71
26 — — — — — — — — — — — — — — — — 1984 1589 123.3 — — — — +49 — — 41.7% -0.33 3–5 (38%) 3–1 (75%) 101.3 -0.19
27 1982 1521 119.2 — — — — — — — 31.3% -0.94 1–0 1–2 (33%) — -0.28 1985 1567 103.0 — — — — — — — 0.0% -3.60 — — — -0.17
28 1983 1718 139.0 — — — — -9 -106 — 59.1% +0.92 6–4 (60%) 4–3 (57%) 104.5 +1.78 — — — — — — — — — — — — — — — —
29 1984 1609 124.9 — — — — +55 -52 -92 31.7% -1.22 4–4 (50%) 2–2 (50%) 100.4 -0.62 — — — — — — — — — — — — — — — —
30 1985 1477 105.6 — — — — +120 — -48 26.7% -1.57 0–3 (0%) 1–3 (25%) 94.6 +0.51 — — — — — — — — — — — — — — — —
31 1986 1511 104.0 — — — — — — — 42.9% -0.71 — — — -0.18 — — — — — — — — — — — — — — — —
Career — 1730 128.5 — — — — +11 +10 -93 41.4% -0.57 43–48 (47%) 39–37 (51%) 103.8 +3.56 — 1737 137.7 — — — — +3 -20 -32 45.2% -0.38 16–28 (36%) 21–21 (50%) 98.6 -0.75

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.