H2H data updated: 2026-09-06 00:00 UTC

Jun Kamiwazumi vs Syd Ball H2H: 1-0

Jun Kamiwazumi holds a 1–0 lead over Syd Ball in their ATP head-to-head. Across 1 main-draw meeting, Jun Kamiwazumi leads 1–0 on clay. Most recently, Jun Kamiwazumi won the 1978 Japan Open round of 32 6-3 6-3.

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Jun Kamiwazumi
JPN Age 78 Right-Handed
H2H
1 – 0
1 main-draw meetings
Syd Ball
AUS Age 76 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jun Kamiwazumi 6-3 6-3 Syd Ball Match data Oct 26, 1978* R32 Japan Open 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
Jun Kamiwazumi #808 #78 0 1,624 64 99 39.3% 0 0 0 0 0 0
Syd Ball #748 #63 0 1,726 125 181 40.8% 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 Jun Kamiwazumi Syd Ball
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1968 1–3 25.0% — 1,491 0 0
19 — — — — — — — 1969 5–5 50.0% — 1,466 0 0
20 1968 1–1 50.0% — 1,498 0 0 1970 6–8 42.9% — 1,450 0 0
21 1969 0–1 0.0% — 1,483 0 0 1971 8–13 38.1% — 1,455 0 0
22 — — — — — — — 1972 7–9 43.8% — 1,510 0 0
23 1971 6–5 54.5% — 1,535 0 0 1973 14–13 51.9% #155 1,595 0 0
24 1972 13–13 50.0% — 1,538 0 0 1974 34–35 49.3% #104 1,649 0 0
25 1973 10–16 38.5% #94 1,526 0 0 1975 13–27 32.5% #116 1,593 0 0
26 1974 14–22 38.9% #100 1,579 0 0 1976 8–19 29.6% #89 1,547 0 0
27 1975 11–23 32.4% #127 1,570 0 0 1977 3–10 23.1% #168 1,511 0 0
28 1976 1–10 9.1% #206 1,515 0 0 1978 2–5 28.6% #294 1,492 0 0
29 1977 1–2 33.3% #264 1,523 0 0 1979 3–5 37.5% #368 1,518 0 0
30 1978 2–2 50.0% #284 1,549 0 0 1980 12–13 48.0% #146 1,560 0 0
31 1979 3–1 75.0% #257 1,589 0 0 1981 8–12 40.0% — 1,547 0 0
32 1980 2–2 50.0% #269 1,595 0 0 1982 1–4 20.0% — 1,512 0 0
36 1984 0–1 0.0% #745 1,581 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 Jun Kamiwazumi Syd Ball
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 — — — — — — — — — — — — — — — — — 1968 — — — — — — — — 1 3 4 25.0% — — — —
19 — — — — — — — — — — — — — — — — — 1969 0 2 2 0.0% — — — — 5 3 8 62.5% — — — —
20 1968 — — — — — — — — 1 1 2 50.0% — — — — 1970 0 1 1 0.0% — — — — 6 7 13 46.2% — — — —
21 1969 — — — — — — — — 0 1 1 0.0% — — — — 1971 1 1 2 50.0% 0 4 4 0.0% 7 8 15 46.7% — — — —
22 — — — — — — — — — — — — — — — — — 1972 2 2 4 50.0% — — — — 5 7 12 41.7% — — — —
23 1971 4 3 7 57.1% 0 1 1 0.0% 2 1 3 66.7% — — — — 1973 1 2 3 33.3% 4 3 7 57.1% 9 8 17 52.9% — — — —
24 1972 5 3 8 62.5% 6 5 11 54.5% 2 5 7 28.6% — — — — 1974 4 9 13 30.8% 3 7 10 30.0% 23 11 34 67.6% 4 8 12 33.3%
25 1973 2 3 5 40.0% 2 6 8 25.0% 6 7 13 46.2% — — — — 1975 3 5 8 37.5% 2 9 11 18.2% 3 5 8 37.5% 5 8 13 38.5%
26 1974 2 4 6 33.3% 10 11 21 47.6% 0 2 2 0.0% 2 5 7 28.6% 1976 4 4 8 50.0% 1 3 4 25.0% 2 4 6 33.3% 1 8 9 11.1%
27 1975 0 5 5 0.0% 7 10 17 41.2% 1 2 3 33.3% 3 6 9 33.3% 1977 0 3 3 0.0% — — — — 2 6 8 25.0% 1 1 2 50.0%
28 1976 0 2 2 0.0% 1 6 7 14.3% 0 2 2 0.0% — — — — 1978 0 1 1 0.0% 0 1 1 0.0% 2 2 4 50.0% 0 1 1 0.0%
29 1977 — — — — 1 1 2 50.0% 0 1 1 0.0% — — — — 1979 — — — — 0 1 1 0.0% 3 3 6 50.0% 0 1 1 0.0%
30 1978 — — — — 2 1 3 66.7% — — — — 0 1 1 0.0% 1980 2 1 3 66.7% 1 4 5 20.0% 7 5 12 58.3% 2 3 5 40.0%
31 1979 — — — — 3 1 4 75.0% — — — — — — — — 1981 1 5 6 16.7% 0 1 1 0.0% 7 5 12 58.3% 0 1 1 0.0%
32 1980 — — — — 2 1 3 66.7% — — — — 0 1 1 0.0% 1982 — — — — — — — — 1 4 5 20.0% — — — —
36 1984 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 13 21 34 38.2% 34 43 77 44.2% 12 22 34 35.3% 5 13 18 27.8% — 18 36 54 33.3% 11 33 44 25.0% 83 81 164 50.6% 13 31 44 29.5%

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 Jun Kamiwazumi Syd Ball
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 — — — — — — — — — — — — — — — — 1968 1491 101.0 — — — — — — +18 33.3% -0.89 — — — 0.00
19 — — — — — — — — — — — — — — — — 1969 1467 103.9 — — — — — — +73 48.0% -0.24 2–0 — — +1.21
20 1968 1498 97.2 — — — — — — — 50.0% -0.83 — — — +0.25 1970 1450 101.5 — — — — — — +38 43.8% -0.47 0–3 (0%) — — +1.37
21 1969 1483 95.1 — — — — — — — 0.0% -4.50 — — — +0.04 1971 1456 110.8 — — — — — +18 +55 41.4% -0.31 2–4 (33%) 1–1 — +2.04
22 — — — — — — — — — — — — — — — — 1972 1511 114.2 — — — — -4 — +40 47.6% -0.14 0–1 — — +0.82
23 1971 1535 104.7 — — — — +40 — +24 52.8% -0.42 1–2 (33%) 4–0 (100%) 102.6 +1.62 1973 1596 110.6 — — — — -85 -49 -17 56.1% +0.32 4–7 (36%) 5–3 (63%) 100.0 +1.84
24 1972 1538 106.9 — — — — +68 +51 -34 47.8% -0.15 6–3 (67%) 1–2 (33%) 103.3 +3.47 1974 1649 131.7 — — — — -143 -127 +153 50.3% +0.21 11–13 (46%) 9–7 (56%) 101.2 +3.66
25 1973 1527 111.0 — — — — +83 -10 +16 39.7% -0.59 5–3 (63%) 5–6 (45%) 103.9 +1.56 1975 1593 119.5 — — — — -42 -76 +115 37.3% -0.92 7–6 (54%) 4–4 (50%) 103.4 +0.67
26 1974 1580 122.2 — — — — -11 +26 — 38.8% -0.85 5–6 (45%) 5–3 (63%) 102.2 +0.26 1976 1548 129.8 — — — — -19 -48 +143 36.9% -0.57 0–7 (0%) 5–6 (45%) 92.0 +1.86
27 1975 1570 124.1 — — — — -82 +30 -44 37.5% -0.76 2–5 (29%) 4–3 (57%) 97.0 -0.39 1977 1511 113.6 — — — — -24 — +92 36.1% -0.95 1–6 (14%) 2–3 (40%) 92.7 +0.29
28 1976 1515 119.6 — — — — — +32 — 14.8% -2.19 1–1 0–3 (0%) — -1.33 1978 1493 105.4 — — — — — — +139 26.7% -1.47 1–0 1–1 — +0.87
29 1977 1523 106.2 — — — — — — — 42.9% -1.14 0–1 — — -0.19 1979 1518 105.7 — — — — — — +121 40.0% -0.85 — 1–2 (33%) — +0.88
30 1978 1550 104.9 — — — — — +38 — 50.0% -0.40 1–1 1–1 — -0.01 1980 1561 118.5 — — — — -80 -98 +126 50.0% +0.02 3–6 (33%) 5–2 (71%) 99.8 +3.76
31 1979 1589 113.2 — — — — — +30 — 75.0% +1.75 — 0–1 — +0.47 1981 1547 113.1 — — — — -107 — +156 46.3% -0.44 2–7 (22%) 3–2 (60%) 95.0 +1.73
32 1980 1596 103.5 — — — — — +22 — 40.0% -0.20 2–0 1–1 — +0.26 1982 1512 93.4 — — — — — — +73 29.4% -1.41 1–1 0–1 — +0.29
36 1984 1581 98.5 — — — — — — — 0.0% -3.50 — — — +0.05 — — — — — — — — — — — — — — — —
Career — 1624 119.2 — — — — -1 +28 -3 40.7% -0.68 23–22 (51%) 21–20 (51%) 104.4 +3.76 — 1727 122.5 — — — — -73 -75 +91 44.5% -0.31 34–61 (36%) 36–32 (53%) 95.2 +6.98

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.