H2H data updated: 2026-09-02 00:00 UTC

Michael Grant vs Jun Kamiwazumi H2H: 0-1

Jun Kamiwazumi holds a 1–0 lead over Michael Grant in their ATP head-to-head. Across 1 main-draw meeting, Jun Kamiwazumi leads 1–0 on clay. Most recently, Jun Kamiwazumi won the 1979 Japan Open round of 16 6-4 7-5.

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Michael Grant
USA Age 70 Right-Handed 183 cm / 6'0"
H2H
0 – 1
1 main draw meetings
Jun Kamiwazumi
JPN Age 78 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jun Kamiwazumi 6-4 7-5 Michael Grant Match data Oct 26, 1979* R16 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
Michael Grant #571 #88 — 1,568 15 31 32.6% 0 0 0 0 0 0
Jun Kamiwazumi #808 #78 0 1,624 64 99 39.3% 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 Michael Grant Jun Kamiwazumi
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1974 0–1 0.0% — 1,483 0 0 — — — — — — —
20 — — — — — — — 1968 1–1 50.0% — 1,498 0 0
21 — — — — — — — 1969 0–1 0.0% — 1,483 0 0
23 1979 5–9 35.7% #96 1,495 0 0 1971 6–5 54.5% — 1,535 0 0
24 1980 10–18 35.7% #196 1,531 0 0 1972 13–13 50.0% — 1,538 0 0
25 1981 0–3 0.0% — 1,496 0 0 1973 10–16 38.5% #94 1,526 0 0
26 — — — — — — — 1974 14–22 38.9% #100 1,579 0 0
27 — — — — — — — 1975 11–23 32.4% #127 1,570 0 0
28 — — — — — — — 1976 1–10 9.1% #206 1,515 0 0
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 Michael Grant Jun Kamiwazumi
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 1974 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1968 — — — — — — — — 1 1 2 50.0% — — — —
21 — — — — — — — — — — — — — — — — — 1969 — — — — — — — — 0 1 1 0.0% — — — —
23 1979 2 3 5 40.0% 3 6 9 33.3% — — — — — — — — 1971 4 3 7 57.1% 0 1 1 0.0% 2 1 3 66.7% — — — —
24 1980 3 4 7 42.9% 7 11 18 38.9% — — — — 0 3 3 0.0% 1972 5 3 8 62.5% 6 5 11 54.5% 2 5 7 28.6% — — — —
25 1981 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — 1973 2 3 5 40.0% 2 6 8 25.0% 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%
27 — — — — — — — — — — — — — — — — — 1975 0 5 5 0.0% 7 10 17 41.2% 1 2 3 33.3% 3 6 9 33.3%
28 — — — — — — — — — — — — — — — — — 1976 0 2 2 0.0% 1 6 7 14.3% 0 2 2 0.0% — — — —
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 — 5 9 14 35.7% 10 18 28 35.7% 0 1 1 0.0% 0 3 3 0.0% — 13 21 34 38.2% 34 43 77 44.2% 12 22 34 35.3% 5 13 18 27.8%

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 Michael Grant Jun Kamiwazumi
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 1974 1484 99.1 — — — — — — — 0.0% -1.00 — 0–2 — +0.09 — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — 1968 1498 97.2 — — — — — — — 50.0% -0.83 — — — +0.25
21 — — — — — — — — — — — — — — — — 1969 1483 95.1 — — — — — — — 0.0% -4.50 — — — +0.04
23 1979 1496 117.6 — — — — +42 +44 — 41.2% -0.18 2–4 (33%) 1–3 (25%) — +1.05 1971 1535 104.7 — — — — +40 — +24 52.8% -0.42 1–2 (33%) 4–0 (100%) — +1.62
24 1980 1532 118.3 — — — — -16 +8 — 40.6% -0.78 2–5 (29%) 3–1 (75%) — +1.12 1972 1538 106.9 — — — — +68 +51 -34 47.8% -0.15 6–3 (67%) 1–2 (33%) — +3.47
25 1981 1497 93.5 — — — — — — — 14.3% -2.29 0–1 — — +0.16 1973 1527 111.0 — — — — +83 -10 +16 39.7% -0.59 5–3 (63%) 5–6 (45%) — +1.56
26 — — — — — — — — — — — — — — — — 1974 1580 122.2 — — — — -11 +26 — 38.8% -0.85 5–6 (45%) 5–3 (63%) — +0.26
27 — — — — — — — — — — — — — — — — 1975 1570 124.1 — — — — -82 +30 -44 37.5% -0.76 2–5 (29%) 4–3 (57%) — -0.39
28 — — — — — — — — — — — — — — — — 1976 1515 119.6 — — — — — +32 — 14.8% -2.19 1–1 0–3 (0%) — -1.33
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 — 1568 115.5 — — — — +3 +20 — 38.4% -0.70 4–10 (29%) 4–6 (40%) 93.8 +5.26 — 1624 119.2 — — — — -1 +28 -3 40.7% -0.68 23–22 (51%) 21–20 (51%) 104.4 +3.76

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.