Kenichi Hirai
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tom Gorman | 0 | 2 | 2 | Nov 3, 1976 | H2H |
| Joel Bailey | 0 | 1 | 1 | Oct 21, 1981 | H2H |
| Hank Pfister | 0 | 1 | 1 | Nov 16, 1978 | H2H |
| Terry Moor | 0 | 1 | 1 | Oct 26, 1978 | H2H |
| John Whitlinger | 0 | 1 | 1 | Nov 2, 1977 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Patricio Rodriguez Chi holds a 1–0 lead over Kenichi Hirai in their ATP head-to-head. Across 1 main-draw meeting, Patricio Rodriguez Chi leads 1–0 on clay. Most recently, Patricio Rodriguez Chi won the 1974 Dutch Open round of 32 6-3 5-7 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Patricio Rodriguez Chi | 6-3 5-7 6-3 | Kenichi Hirai | Match data | Jul 24, 1974* | R32 | Dutch 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kenichi Hirai | #648 | #180 | 0 | 1,503 | 7 | 32 | 17.9% | 0 | 0 | 0 | 0 | 0 | 0 |
| Patricio Rodriguez Chi | — | — | — | 1,533 | — | — | — | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Kenichi Hirai | Patricio Rodriguez Chi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1971 | 1–7 | 12.5% | — | 1,443 | 0 | 0 | — | — | — | — | — | — | — |
| 1972 | 2–3 | 40.0% | — | 1,466 | 0 | 0 | — | — | — | — | — | — | — |
| 1973 | 1–5 | 16.7% | #226 | 1,459 | 0 | 0 | — | — | — | — | — | — | — |
| 1974 | 1–4 | 20.0% | #228 | 1,438 | 0 | 0 | — | — | — | — | — | — | — |
| 1975 | 0–4 | 0.0% | #252 | 1,413 | 0 | 0 | — | — | — | — | — | — | — |
| 1976 | 2–4 | 33.3% | #187 | 1,438 | 0 | 0 | — | — | — | — | — | — | — |
| 1977 | 0–2 | 0.0% | #220 | 1,420 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 0–2 | 0.0% | #496 | 1,413 | 0 | 0 | — | — | — | — | — | — | — |
| 1981 | 0–1 | 0.0% | — | 1,400 | 0 | 0 | — | — | — | — | — | — | — |
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.
| Kenichi Hirai | Patricio Rodriguez Chi | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1971 | 1 | 4 | 5 | 20.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1968 | 0 | 1 | 1 | 0.0% | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — |
| 1972 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 1969 | — | — | — | — | 4 | 7 | 11 | 36.4% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1973 | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1970 | — | — | — | — | 4 | 6 | 10 | 40.0% | — | — | — | — | — | — | — | — |
| 1974 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | 1971 | — | — | — | — | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 1975 | — | — | — | — | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1972 | — | — | — | — | 1 | 5 | 6 | 16.7% | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 1976 | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | — | — | — | — | 1973 | — | — | — | — | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — |
| 1977 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1974 | — | — | — | — | 1 | 4 | 5 | 20.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1978 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1975 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 1981 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1976 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1978 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | 3 | 9 | 12 | 25.0% | 2 | 13 | 15 | 13.3% | 2 | 8 | 10 | 20.0% | 0 | 2 | 2 | 0.0% | Career | 0 | 1 | 1 | 0.0% | 14 | 42 | 56 | 25.0% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Kenichi Hirai | Patricio Rodriguez Chi | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1971 | 1444 | 96.8 | — | — | — | — | +64 | — | — | 11.1% | -2.11 | 1–0 | 0–2 | — | +0.42 | 1968 | 1474 | 102.3 | — | — | — | — | — | -7 | — | 39.3% | -0.96 | 0–3 (0%) | — | — | -0.55 |
| 1972 | 1466 | 108.1 | — | — | — | — | — | — | — | 45.5% | -0.27 | 0–1 | — | — | -0.18 | 1969 | 1473 | 109.8 | — | — | — | — | — | -1 | — | 37.8% | -0.84 | 1–3 (25%) | — | — | +0.31 |
| 1973 | 1460 | 113.9 | — | — | — | — | — | +51 | — | 31.3% | -1.13 | 0–2 | 0–1 | — | -0.37 | 1970 | 1525 | 119.1 | — | — | — | — | — | +6 | — | 40.0% | -0.84 | 1–1 | — | — | -0.03 |
| 1974 | 1439 | 100.1 | — | — | — | — | — | — | — | 33.3% | -1.42 | 0–2 | 0–1 | — | +0.48 | 1971 | 1468 | 94.7 | — | — | — | — | — | -2 | — | 16.7% | -2.83 | 0–1 | — | — | +0.18 |
| 1975 | 1413 | 115.4 | — | — | — | — | — | — | — | 10.0% | -2.60 | — | 0–1 | — | -0.20 | 1972 | 1419 | 96.5 | — | — | — | — | — | +14 | — | 34.5% | -1.66 | 1–3 (25%) | — | — | +0.50 |
| 1976 | 1439 | 111.6 | — | — | — | — | — | +36 | — | 35.7% | -0.43 | — | 0–1 | — | +0.34 | 1973 | 1419 | 97.3 | — | — | — | — | — | -4 | — | 21.1% | -1.79 | 1–2 (33%) | 0–2 | — | +0.10 |
| 1977 | 1421 | 99.6 | — | — | — | — | — | — | — | 20.0% | -2.40 | 0–1 | 0–1 | — | +0.09 | 1974 | 1398 | 99.0 | — | — | — | — | — | -22 | — | 26.7% | -1.40 | 1–2 (33%) | 1–0 | — | +0.47 |
| 1978 | 1414 | 105.5 | — | — | — | — | — | — | — | 20.0% | -2.60 | 0–1 | — | — | -0.11 | 1975 | 1386 | 98.1 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | +0.18 |
| 1981 | 1400 | 96.5 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.23 | 1976 | 1385 | 107.2 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | 0–1 | — | -0.15 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1978 | 1384 | 106.5 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | 0–1 | — | -0.08 |
| Career | 1504 | 112.1 | — | — | — | — | +64 | +44 | — | 25.8% | -1.50 | 1–7 (13%) | 0–7 (0%) | 88.6 | +1.79 | Career | 1534 | 107.2 | — | — | — | — | — | -2 | — | 32.4% | -1.34 | 5–15 (25%) | 1–4 (20%) | 91.1 | +1.52 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tom Gorman | 0 | 2 | 2 | Nov 3, 1976 | H2H |
| Joel Bailey | 0 | 1 | 1 | Oct 21, 1981 | H2H |
| Hank Pfister | 0 | 1 | 1 | Nov 16, 1978 | H2H |
| Terry Moor | 0 | 1 | 1 | Oct 26, 1978 | H2H |
| John Whitlinger | 0 | 1 | 1 | Nov 2, 1977 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Guillermo Vilas | 0 | 3 | 3 | Nov 19, 1974 | — |
| Antonio Zugarelli | 1 | 2 | 3 | Oct 10, 1973 | — |
| Jan Kodes | 0 | 3 | 3 | Jun 28, 1972 | — |
| Kjell Johansson | 0 | 2 | 2 | Oct 23, 1973 | — |
| Nicholas Kalogeropoulos | 0 | 2 | 2 | Apr 4, 1973 | — |