Jun Kamiwazumi
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Dick Stockton | 2 | 2 | 4 | Jun 8, 1977 | H2H |
| Manuel Orantes | 1 | 3 | 4 | Aug 14, 1975 | H2H |
| Onny Parun | 0 | 3 | 3 | May 13, 1976 | H2H |
| Stan Smith | 2 | 1 | 3 | Apr 18, 1975 | H2H |
| Francisco Gonzalez | 1 | 1 | 2 | Sep 27, 1984 | H2H |
H2H data updated: 2026-09-05 00:00 UTC
Jun Kamiwazumi vs Roberto Chavez H2H: 1-0
Jun Kamiwazumi holds a 1–0 lead over Roberto Chavez in their ATP head-to-head. Across 1 main-draw meeting, Jun Kamiwazumi leads 1–0 on clay. Most recently, Jun Kamiwazumi won the 1973 Roland Garros round of 128 6-3 6-4.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Jun Kamiwazumi | 6-3 6-4 | Roberto Chavez | Match data | May 23, 1973* | R128 | Roland Garros | Grand Slam | 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 |
| Roberto Chavez | #279 | #172 | 0 | 1,571 | 11 | 13 | 45.8% | 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.
| Jun Kamiwazumi | Roberto Chavez | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 1–1 | 50.0% | — | 1,498 | 0 | 0 | 1968 | 2–1 | 66.7% | — | 1,520 | 0 | 0 |
| 1969 | 0–1 | 0.0% | — | 1,483 | 0 | 0 | 1973 | 7–4 | 63.6% | #201 | 1,557 | 0 | 0 |
| 1971 | 6–5 | 54.5% | — | 1,535 | 0 | 0 | 1974 | 0–2 | 0.0% | #249 | 1,541 | 0 | 0 |
| 1972 | 13–13 | 50.0% | — | 1,538 | 0 | 0 | 1976 | 0–1 | 0.0% | #310 | 1,528 | 0 | 0 |
| 1973 | 10–16 | 38.5% | #94 | 1,526 | 0 | 0 | 1977 | 0–2 | 0.0% | #281 | 1,519 | 0 | 0 |
| 1974 | 14–22 | 38.9% | #100 | 1,579 | 0 | 0 | 1978 | 2–3 | 40.0% | #279 | 1,530 | 0 | 0 |
| 1975 | 11–23 | 32.4% | #127 | 1,570 | 0 | 0 | — | — | — | — | — | — | — |
| 1976 | 1–10 | 9.1% | #206 | 1,515 | 0 | 0 | — | — | — | — | — | — | — |
| 1977 | 1–2 | 33.3% | #264 | 1,523 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 2–2 | 50.0% | #284 | 1,549 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 3–1 | 75.0% | #257 | 1,589 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 2–2 | 50.0% | #269 | 1,595 | 0 | 0 | — | — | — | — | — | — | — |
| 1984 | 0–1 | 0.0% | #745 | 1,581 | 0 | 0 | — | — | — | — | — | — | — |
Surface Results by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Jun Kamiwazumi | Roberto Chavez | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| 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 % | ||
| 1968 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 1968 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — |
| 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1973 | — | — | — | — | 0 | 1 | 1 | 0.0% | 7 | 3 | 10 | 70.0% | — | — | — | — |
| 1971 | 4 | 3 | 7 | 57.1% | 0 | 1 | 1 | 0.0% | 2 | 1 | 3 | 66.7% | — | — | — | — | 1974 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 1972 | 5 | 3 | 8 | 62.5% | 6 | 5 | 11 | 54.5% | 2 | 5 | 7 | 28.6% | — | — | — | — | 1976 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1973 | 2 | 3 | 5 | 40.0% | 2 | 6 | 8 | 25.0% | 6 | 7 | 13 | 46.2% | — | — | — | — | 1977 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1974 | 2 | 4 | 6 | 33.3% | 10 | 11 | 21 | 47.6% | 0 | 2 | 2 | 0.0% | 2 | 5 | 7 | 28.6% | 1978 | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — |
| 1975 | 0 | 5 | 5 | 0.0% | 7 | 10 | 17 | 41.2% | 1 | 2 | 3 | 33.3% | 3 | 6 | 9 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 0 | 2 | 2 | 0.0% | 1 | 6 | 7 | 14.3% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | — | — | — | — | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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% | Career | 0 | 2 | 2 | 0.0% | 4 | 5 | 9 | 44.4% | 7 | 4 | 11 | 63.6% | 0 | 2 | 2 | 0.0% |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Jun Kamiwazumi | Roberto Chavez | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1968 | 1498 | 97.2 | — | — | — | — | — | — | — | 50.0% | -0.83 | — | — | — | +0.25 | 1968 | 1520 | 111.7 | — | — | — | — | — | +15 | — | 66.7% | +2.33 | — | — | — | +0.14 |
| 1969 | 1483 | 95.1 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.04 | 1973 | 1557 | 104.8 | — | — | — | — | — | — | +44 | 57.1% | +0.21 | 2–0 | — | — | +1.71 |
| 1971 | 1535 | 104.7 | — | — | — | — | +40 | — | +24 | 52.8% | -0.42 | 1–2 (33%) | 4–0 (100%) | 102.6 | +1.62 | 1974 | 1542 | 109.8 | — | — | — | — | — | — | — | 20.0% | -1.40 | 0–1 | — | — | -0.39 |
| 1972 | 1538 | 106.9 | — | — | — | — | +68 | +51 | -34 | 47.8% | -0.15 | 6–3 (67%) | 1–2 (33%) | 103.3 | +3.47 | 1976 | 1528 | 99.0 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.11 |
| 1973 | 1527 | 111.0 | — | — | — | — | +83 | -10 | +16 | 39.7% | -0.59 | 5–3 (63%) | 5–6 (45%) | 103.9 | +1.56 | 1977 | 1520 | 105.4 | — | — | — | — | — | — | — | 20.0% | -2.20 | 0–1 | 0–1 | — | -0.08 |
| 1974 | 1580 | 122.2 | — | — | — | — | -11 | +26 | — | 38.8% | -0.85 | 5–6 (45%) | 5–3 (63%) | 102.2 | +0.26 | 1978 | 1530 | 109.0 | — | — | — | — | — | +11 | — | 41.7% | -0.33 | 1–1 | 2–2 (50%) | — | +0.39 |
| 1975 | 1570 | 124.1 | — | — | — | — | -82 | +30 | -44 | 37.5% | -0.76 | 2–5 (29%) | 4–3 (57%) | 97.0 | -0.39 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 1515 | 119.6 | — | — | — | — | — | +32 | — | 14.8% | -2.19 | 1–1 | 0–3 (0%) | — | -1.33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1523 | 106.2 | — | — | — | — | — | — | — | 42.9% | -1.14 | 0–1 | — | — | -0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1550 | 104.9 | — | — | — | — | — | +38 | — | 50.0% | -0.40 | 1–1 | 1–1 | — | -0.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1589 | 113.2 | — | — | — | — | — | +30 | — | 75.0% | +1.75 | — | 0–1 | — | +0.47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1596 | 103.5 | — | — | — | — | — | +22 | — | 40.0% | -0.20 | 2–0 | 1–1 | — | +0.26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | Career | 1571 | 112.7 | — | — | — | — | — | +13 | +44 | 46.6% | -0.14 | 3–3 (50%) | 2–3 (40%) | 101.8 | +7.83 |
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.
Roberto Chavez
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Sashi Menon | 0 | 1 | 1 | Sep 30, 1978 | H2H |
| John Alexander | 1 | 0 | 1 | Sep 29, 1978 | H2H |
| Dennis Gibson | 1 | 0 | 1 | Sep 28, 1978 | H2H |
| Erik Van Dillen | 0 | 1 | 1 | Apr 19, 1978 | — |
| Steve Krulevitz | 0 | 1 | 1 | Feb 2, 1978 | H2H |