H2H data updated: 2026-09-07 00:00 UTC

John James vs Pavel Slozil H2H: 1-1

John James and Pavel Slozil are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, they are tied 1–1 on clay. Most recently, Pavel Slozil won the 1979 U.S. Pro Tennis Championships round of 16 6-3 7-5.

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John James
AUS Age 75 Right-Handed 183 cm / 6'0"
H2H
1 – 1
2 main-draw meetings
Pavel Slozil
CZE Age 70 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Pavel Slozil #62 6-3 7-5 John James Match data Aug 24, 1979* R16 U.S. Pro Tennis Championships ATP 250 Clay
John James 6-0 6-1 Pavel Slozil Match data Oct 12, 1977* R64 Madrid 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
John James #808 #81 28 1,682 98 144 40.5% 0 0 0 0 0 0
Pavel Slozil #550 #12 0 1,791 142 160 47.0% 0 0 0 0 2 2

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 John James Pavel Slozil
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 3–3 50.0% — 1,516 0 0 — — — — — — —
19 1970 1–1 50.0% — 1,513 0 0 1975 1–6 14.3% #218 1,481 0 0
20 — — — — — — — 1976 1–5 16.7% #310 1,443 0 0
21 1972 7–4 63.6% — 1,570 0 0 1977 0–2 0.0% #281 1,419 0 0
22 1973 0–5 0.0% — 1,514 0 0 1978 5–5 50.0% #190 1,509 0 0
23 1974 2–3 40.0% #249 1,517 0 0 1979 19–18 51.4% #78 1,657 0 0
24 1975 5–10 33.3% #135 1,517 0 0 1980 10–10 50.0% #68 1,701 0 0
25 1976 6–14 30.0% #146 1,512 0 0 1981 18–16 52.9% #68 1,721 0 1
26 1977 16–23 41.0% #97 1,583 0 0 1982 19–18 51.4% #49 1,679 0 1
27 1978 20–27 42.6% #102 1,629 0 0 1983 22–21 51.2% #81 1,680 0 1
28 1979 19–22 46.3% #91 1,644 0 0 1984 21–17 55.3% #40 1,733 0 1
29 1980 12–25 32.4% #209 1,493 0 0 1985 18–26 40.9% #95 1,644 0 2
30 1981 3–4 42.9% — 1,490 0 0 1986 8–16 33.3% #165 1,588 0 2
31 1982 4–3 57.1% — 1,559 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 John James Pavel Slozil
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 1968 — — — — — — — — 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
19 1970 — — — — — — — — 1 1 2 50.0% — — — — 1975 1 1 2 50.0% 0 1 1 0.0% — — — — 0 4 4 0.0%
20 — — — — — — — — — — — — — — — — — 1976 0 1 1 0.0% 0 1 1 0.0% — — — — 1 3 4 25.0%
21 1972 0 1 1 0.0% — — — — 7 3 10 70.0% — — — — 1977 — — — — 0 2 2 0.0% — — — — — — — —
22 1973 — — — — — — — — 0 5 5 0.0% — — — — 1978 — — — — 5 5 10 50.0% — — — — — — — —
23 1974 — — — — — — — — 2 3 5 40.0% — — — — 1979 4 7 11 36.4% 14 9 23 60.9% 0 1 1 0.0% 1 1 2 50.0%
24 1975 0 1 1 0.0% 2 4 6 33.3% 2 3 5 40.0% 1 2 3 33.3% 1980 0 3 3 0.0% 9 6 15 60.0% — — — — 1 1 2 50.0%
25 1976 1 4 5 20.0% 1 6 7 14.3% 4 3 7 57.1% 0 1 1 0.0% 1981 6 3 9 66.7% 11 11 22 50.0% 0 1 1 0.0% 1 1 2 50.0%
26 1977 1 3 4 25.0% 8 8 16 50.0% 4 6 10 40.0% 3 6 9 33.3% 1982 2 4 6 33.3% 15 9 24 62.5% 0 1 1 0.0% 2 4 6 33.3%
27 1978 7 8 15 46.7% 2 8 10 20.0% 9 6 15 60.0% 2 5 7 28.6% 1983 1 4 5 20.0% 15 11 26 57.7% — — — — 6 6 12 50.0%
28 1979 5 6 11 45.5% 4 6 10 40.0% 8 7 15 53.3% 2 3 5 40.0% 1984 9 4 13 69.2% 12 12 24 50.0% 0 1 1 0.0% — — — —
29 1980 4 7 11 36.4% 5 10 15 33.3% 3 5 8 37.5% 0 3 3 0.0% 1985 4 9 13 30.8% 11 11 22 50.0% 0 1 1 0.0% 3 5 8 37.5%
30 1981 2 2 4 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — 1986 3 3 6 50.0% 3 9 12 25.0% 0 1 1 0.0% 2 3 5 40.0%
31 1982 — — — — 1 2 3 33.3% 3 1 4 75.0% — — — — — — — — — — — — — — — — — — — — —
Career — 20 32 52 38.5% 24 45 69 34.8% 46 47 93 49.5% 8 20 28 28.6% — 30 39 69 43.5% 95 87 182 52.2% 0 6 6 0.0% 17 28 45 37.8%

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 John James Pavel Slozil
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 1968 1517 105.8 — — — — — — +24 56.5% +0.69 1–2 (33%) — — +0.22 — — — — — — — — — — — — — — — —
19 1970 1514 99.8 — — — — — — — 50.0% 0.00 — — — +0.23 1975 1482 115.7 — — — — +51 — — 27.8% -1.22 1–3 (25%) 2–4 (33%) 97.6 +0.12
20 — — — — — — — — — — — — — — — — 1976 1444 99.6 — — — — +45 — — 25.0% -1.25 1–1 2–2 (50%) — +0.98
21 1972 1570 111.6 — — — — — — +66 56.7% +0.27 1–1 3–0 (100%) — +0.69 1977 1419 92.9 — — — — — — — 28.6% -2.57 0–1 2–0 — +0.16
22 1973 1514 96.4 — — — — — — -5 23.1% -1.54 0–1 0–1 — -0.23 1978 1510 128.1 — — — — — +48 — 50.0% +0.42 1–1 0–1 — +0.03
23 1974 1518 116.6 — — — — — — -4 30.0% -2.20 0–1 1–0 — -0.43 1979 1657 135.7 — — — — -121 +55 — 50.6% -0.08 6–4 (60%) 6–4 (60%) 104.4 +0.92
24 1975 1517 115.0 — — — — +32 +20 -4 35.3% -1.26 0–2 2–0 — +0.66 1980 1701 135.2 — — — — -180 +64 — 48.9% -0.47 3–2 (60%) 2–2 (50%) 102.8 -1.47
25 1976 1513 125.5 — — — — -18 -10 +71 36.0% -0.80 3–4 (43%) 2–3 (40%) 99.0 +1.02 1981 1722 140.9 — — — — -95 +28 — 54.9% +0.39 4–8 (33%) 3–6 (33%) 96.8 -0.37
26 1977 1583 129.9 — — — — -86 +21 -28 40.0% -0.40 4–4 (50%) 1–3 (25%) 99.4 -0.34 1982 1679 137.1 — — — — -68 +89 — 52.2% +0.26 4–6 (40%) 8–9 (47%) 97.4 +0.28
27 1978 1629 127.4 — — — — -82 -94 +53 43.9% -0.27 6–6 (50%) 4–7 (36%) 99.8 +1.51 1983 1680 138.5 — — — — -58 +64 — 50.5% -0.13 6–6 (50%) 7–4 (64%) 102.6 +1.67
28 1979 1645 125.5 — — — — -50 -102 +53 47.9% -0.21 2–3 (40%) 5–7 (42%) 97.3 +2.00 1984 1733 137.6 — — — — -18 -9 — 51.6% +0.13 7–3 (70%) 6–4 (60%) 106.2 -0.01
29 1980 1494 113.3 — — — — +7 +34 +158 34.9% -0.97 2–7 (22%) 1–4 (20%) 92.6 +3.49 1985 1644 127.6 — — — — -42 +82 — 44.7% -0.34 4–7 (36%) 6–6 (50%) 97.9 +0.23
30 1981 1490 106.2 — — — — +36 — — 50.0% -0.45 0–2 — — +1.40 1986 1589 122.5 — — — — +53 +14 — 41.3% -0.44 2–7 (22%) 2–4 (33%) 93.4 -0.26
31 1982 1560 121.8 — — — — — -22 +96 50.0% -0.56 2–0 1–0 — -0.32 — — — — — — — — — — — — — — — —
Career — 1683 127.2 — — — — -44 -17 +47 42.3% -0.49 21–33 (39%) 20–25 (44%) 94.5 +4.13 — 1792 140.4 — — — — -47 +50 — 48.4% -0.11 39–49 (44%) 46–46 (50%) 100.5 +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.