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

Jun Kamiwazumi vs Buster C Mottram H2H: 0-1

Buster C Mottram holds a 1–0 lead over Jun Kamiwazumi in their ATP head-to-head. Across 1 main-draw meeting, Buster C Mottram leads 1–0 on carpet. Most recently, Buster C Mottram won the 1975 Philadelphia Wct round of 128 6-1 6-2.

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Jun Kamiwazumi
JPN Age 78 Right-Handed
H2H
0 – 1
1 main draw meetings
Buster C Mottram
GBR Age 71 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Buster C Mottram #59 6-1 6-2 Jun Kamiwazumi #102 Match data Jan 21, 1975* R128 Philadelphia Wct 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
Jun Kamiwazumi #808 #78 0 1,624 64 99 39.3% 0 0 0 0 0 0
Buster C Mottram #735 #15 0 1,979 271 174 60.9% 0 0 0 0 3 3

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 Buster C Mottram
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1970 0–1 0.0% — 1,497 0 0
16 — — — — — — — 1971 2–1 66.7% — 1,533 0 0
17 — — — — — — — 1972 1–2 33.3% — 1,546 0 0
18 — — — — — — — 1973 14–11 56.0% #33 1,659 0 0
19 — — — — — — — 1974 14–13 51.9% #55 1,781 0 0
20 1968 1–1 50.0% — 1,498 0 0 1975 26–15 63.4% #34 1,931 0 2
21 1969 0–1 0.0% — 1,483 0 0 1976 33–16 67.3% #41 1,860 0 3
22 — — — — — — — 1977 49–23 68.1% #19 1,917 0 3
23 1971 6–5 54.5% — 1,535 0 0 1978 28–16 63.6% #28 1,849 0 3
24 1972 13–13 50.0% — 1,538 0 0 1979 33–19 63.5% #32 1,889 0 3
25 1973 10–16 38.5% #94 1,526 0 0 1980 25–18 58.1% #43 1,828 0 3
26 1974 14–22 38.9% #100 1,579 0 0 1981 13–13 50.0% #72 1,776 0 3
27 1975 11–23 32.4% #127 1,570 0 0 1982 28–16 63.6% #20 1,862 0 3
28 1976 1–10 9.1% #206 1,515 0 0 1983 5–10 33.3% #91 1,716 0 3
29 1977 1–2 33.3% #264 1,523 0 0 — — — — — — —
30 1978 2–2 50.0% #284 1,549 0 0 — — — — — — —
31 1979 3–1 75.0% #257 1,589 0 0 — — — — — — —
32 1980 2–2 50.0% #269 1,595 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 Buster C Mottram
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 %
15 — — — — — — — — — — — — — — — — — 1970 — — — — — — — — 0 1 1 0.0% — — — —
16 — — — — — — — — — — — — — — — — — 1971 — — — — — — — — 2 1 3 66.7% — — — —
17 — — — — — — — — — — — — — — — — — 1972 — — — — — — — — 1 2 3 33.3% — — — —
18 — — — — — — — — — — — — — — — — — 1973 0 1 1 0.0% 12 6 18 66.7% 2 3 5 40.0% 0 1 1 0.0%
19 — — — — — — — — — — — — — — — — — 1974 5 3 8 62.5% 5 6 11 45.5% 2 1 3 66.7% 2 3 5 40.0%
20 1968 — — — — — — — — 1 1 2 50.0% — — — — 1975 6 2 8 75.0% 5 5 10 50.0% — — — — 15 8 23 65.2%
21 1969 — — — — — — — — 0 1 1 0.0% — — — — 1976 — — — — 33 13 46 71.7% 0 1 1 0.0% 0 2 2 0.0%
22 — — — — — — — — — — — — — — — — — 1977 8 3 11 72.7% 28 11 39 71.8% 2 2 4 50.0% 11 7 18 61.1%
23 1971 4 3 7 57.1% 0 1 1 0.0% 2 1 3 66.7% — — — — 1978 1 2 3 33.3% 21 8 29 72.4% 1 1 2 50.0% 5 5 10 50.0%
24 1972 5 3 8 62.5% 6 5 11 54.5% 2 5 7 28.6% — — — — 1979 6 3 9 66.7% 15 7 22 68.2% 1 1 2 50.0% 11 8 19 57.9%
25 1973 2 3 5 40.0% 2 6 8 25.0% 6 7 13 46.2% — — — — 1980 9 5 14 64.3% 9 5 14 64.3% 1 1 2 50.0% 6 7 13 46.2%
26 1974 2 4 6 33.3% 10 11 21 47.6% 0 2 2 0.0% 2 5 7 28.6% 1981 5 4 9 55.6% 6 4 10 60.0% 2 2 4 50.0% 0 3 3 0.0%
27 1975 0 5 5 0.0% 7 10 17 41.2% 1 2 3 33.3% 3 6 9 33.3% 1982 5 3 8 62.5% 11 6 17 64.7% 3 1 4 75.0% 9 6 15 60.0%
28 1976 0 2 2 0.0% 1 6 7 14.3% 0 2 2 0.0% — — — — 1983 0 1 1 0.0% 4 7 11 36.4% 0 1 1 0.0% 1 1 2 50.0%
29 1977 — — — — 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
30 1978 — — — — 2 1 3 66.7% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 1979 — — — — 3 1 4 75.0% — — — — — — — — — — — — — — — — — — — — — — — — —
32 1980 — — — — 2 1 3 66.7% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
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% — 45 27 72 62.5% 149 78 227 65.6% 17 18 35 48.6% 60 51 111 54.1%

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 Jun Kamiwazumi Buster C Mottram
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
15 — — — — — — — — — — — — — — — — 1970 1498 98.7 — — — — — — — 0.0% -4.50 — — — -0.37
16 — — — — — — — — — — — — — — — — 1971 1534 104.7 — — — — — — +21 57.1% +0.72 1–0 — — -0.18
17 — — — — — — — — — — — — — — — — 1972 1547 100.3 — — — — — — -1 30.0% -1.10 1–0 — — -0.37
18 — — — — — — — — — — — — — — — — 1973 1659 133.4 — — — — — +68 -120 56.7% +0.55 3–6 (33%) 3–4 (43%) 97.3 +0.27
19 — — — — — — — — — — — — — — — — 1974 1781 141.7 — — — — -124 -49 — 53.8% +0.46 5–5 (50%) 4–5 (44%) 100.8 -2.84
20 1968 1498 97.2 — — — — — — — 50.0% -0.83 — — — +0.25 1975 1932 149.6 — — — — +20 -209 — 64.0% +1.10 5–2 (71%) 4–3 (57%) 106.5 -2.04
21 1969 1483 95.1 — — — — — — — 0.0% -4.50 — — — +0.04 1976 1861 148.9 — — — — — +18 — 65.1% +1.28 7–3 (70%) 5–8 (38%) 102.1 -0.01
22 — — — — — — — — — — — — — — — — 1977 1918 152.4 — — — — +25 +10 -340 64.4% +0.91 9–8 (53%) 11–5 (69%) 101.7 +1.38
23 1971 1535 104.7 — — — — +40 — +24 52.8% -0.42 1–2 (33%) 4–0 (100%) 102.6 +1.62 1978 1850 144.2 — — — — +33 +43 — 61.0% +0.70 8–6 (57%) 3–3 (50%) 98.8 +0.69
24 1972 1538 106.9 — — — — +68 +51 -34 47.8% -0.15 6–3 (67%) 1–2 (33%) 103.3 +3.47 1979 1889 152.8 — — — — +44 -4 — 59.5% +0.80 10–2 (83%) 9–5 (64%) 108.9 -2.47
25 1973 1527 111.0 — — — — +83 -10 +16 39.7% -0.59 5–3 (63%) 5–6 (45%) 103.9 +1.56 1980 1828 148.0 — — — — +40 +37 — 57.5% +0.64 10–7 (59%) 6–8 (43%) 96.6 -0.77
26 1974 1580 122.2 — — — — -11 +26 — 38.8% -0.85 5–6 (45%) 5–3 (63%) 102.2 +0.26 1981 1777 143.5 — — — — +28 +90 -145 50.9% +0.40 2–4 (33%) 1–3 (25%) 95.1 -2.23
27 1975 1570 124.1 — — — — -82 +30 -44 37.5% -0.76 2–5 (29%) 4–3 (57%) 97.0 -0.39 1982 1863 153.4 — — — — +20 -9 -176 60.8% +1.04 6–4 (60%) 3–9 (25%) 97.0 -1.73
28 1976 1515 119.6 — — — — — +32 — 14.8% -2.19 1–1 0–3 (0%) — -1.33 1983 1716 133.5 — — — — +147 +32 — 41.7% -0.33 0–4 (0%) 1–4 (20%) 91.7 -0.88
29 1977 1523 106.2 — — — — — — — 42.9% -1.14 0–1 — — -0.19 — — — — — — — — — — — — — — — —
30 1978 1550 104.9 — — — — — +38 — 50.0% -0.40 1–1 1–1 — -0.01 — — — — — — — — — — — — — — — —
31 1979 1589 113.2 — — — — — +30 — 75.0% +1.75 — 0–1 — +0.47 — — — — — — — — — — — — — — — —
32 1980 1596 103.5 — — — — — +22 — 40.0% -0.20 2–0 1–1 — +0.26 — — — — — — — — — — — — — — — —
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 — 1980 154.6 — — — — +21 +11 -138 59.3% +0.76 67–51 (57%) 50–57 (47%) 98.7 -2.63

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.