Syd Ball
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Ross Case | 2 | 4 | 6 | Oct 15, 1981 | H2H |
| Jaime Fillol | 0 | 4 | 4 | Mar 12, 1981 | H2H |
| Jean Francois Caujolle | 2 | 2 | 4 | May 16, 1980 | H2H |
| John James | 2 | 2 | 4 | Oct 12, 1979 | H2H |
| Ken Rosewall | 0 | 4 | 4 | Oct 13, 1978 | H2H |
H2H data updated: 2026-09-10 00:00 UTC
Syd Ball vs Isao Kobayashi H2H: 1-0
Syd Ball holds a 1–0 lead over Isao Kobayashi in their ATP head-to-head. Across 1 main-draw meeting, Syd Ball leads 1–0 on grass. Most recently, Syd Ball won the 1969 Hobart round of 64 6-4 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Syd Ball | 6-4 6-2 | Isao Kobayashi | Match data | Jan 1, 1969* | R64 | Hobart | ATP 250 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Syd Ball | #748 | #63 | 0 | 1,726 | 125 | 181 | 40.8% | 0 | 0 | 0 | 0 | 0 | 0 |
| Isao Kobayashi | — | — | — | 1,500 | — | — | — | 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.
| Syd Ball | Isao Kobayashi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 1–3 | 25.0% | — | 1,491 | 0 | 0 | — | — | — | — | — | — | — |
| 1969 | 5–5 | 50.0% | — | 1,466 | 0 | 0 | — | — | — | — | — | — | — |
| 1970 | 6–8 | 42.9% | — | 1,450 | 0 | 0 | — | — | — | — | — | — | — |
| 1971 | 8–13 | 38.1% | — | 1,455 | 0 | 0 | — | — | — | — | — | — | — |
| 1972 | 7–9 | 43.8% | — | 1,510 | 0 | 0 | — | — | — | — | — | — | — |
| 1973 | 14–13 | 51.9% | #155 | 1,595 | 0 | 0 | — | — | — | — | — | — | — |
| 1974 | 34–35 | 49.3% | #104 | 1,649 | 0 | 0 | — | — | — | — | — | — | — |
| 1975 | 13–27 | 32.5% | #116 | 1,593 | 0 | 0 | — | — | — | — | — | — | — |
| 1976 | 8–19 | 29.6% | #89 | 1,547 | 0 | 0 | — | — | — | — | — | — | — |
| 1977 | 3–10 | 23.1% | #168 | 1,511 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 2–5 | 28.6% | #294 | 1,492 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 3–5 | 37.5% | #368 | 1,517 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 12–13 | 48.0% | #146 | 1,560 | 0 | 0 | — | — | — | — | — | — | — |
| 1981 | 8–12 | 40.0% | — | 1,547 | 0 | 0 | — | — | — | — | — | — | — |
| 1982 | 1–4 | 20.0% | — | 1,512 | 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.
| Syd Ball | Isao Kobayashi | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 3 | 4 | 25.0% | — | — | — | — | 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1969 | 0 | 2 | 2 | 0.0% | — | — | — | — | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1970 | 0 | 1 | 1 | 0.0% | — | — | — | — | 6 | 7 | 13 | 46.2% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1971 | 1 | 1 | 2 | 50.0% | 0 | 4 | 4 | 0.0% | 7 | 8 | 15 | 46.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1972 | 2 | 2 | 4 | 50.0% | — | — | — | — | 5 | 7 | 12 | 41.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1973 | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | 9 | 8 | 17 | 52.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1974 | 4 | 9 | 13 | 30.8% | 3 | 7 | 10 | 30.0% | 23 | 11 | 34 | 67.6% | 4 | 8 | 12 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1975 | 3 | 5 | 8 | 37.5% | 2 | 9 | 11 | 18.2% | 3 | 5 | 8 | 37.5% | 5 | 8 | 13 | 38.5% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 4 | 4 | 8 | 50.0% | 1 | 3 | 4 | 25.0% | 2 | 4 | 6 | 33.3% | 1 | 8 | 9 | 11.1% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 0 | 3 | 3 | 0.0% | — | — | — | — | 2 | 6 | 8 | 25.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | — | — | — | — | 0 | 1 | 1 | 0.0% | 3 | 3 | 6 | 50.0% | 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% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1 | 5 | 6 | 16.7% | 0 | 1 | 1 | 0.0% | 7 | 5 | 12 | 58.3% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 18 | 36 | 54 | 33.3% | 11 | 33 | 44 | 25.0% | 83 | 81 | 164 | 50.6% | 13 | 31 | 44 | 29.5% | Career | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
Advanced Statistics Comparison by Career Season
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.
| Syd Ball | Isao Kobayashi | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1491 | 101.0 | — | — | — | — | — | — | +18 | 33.3% | -0.89 | — | — | — | 0.00 | 1969 | 1483 | 96.8 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.09 |
| 1969 | 1467 | 103.9 | — | — | — | — | — | — | +73 | 48.0% | -0.24 | 2–0 | — | — | +1.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1970 | 1450 | 101.5 | — | — | — | — | — | — | +38 | 43.8% | -0.47 | 0–3 (0%) | — | — | +1.37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1971 | 1456 | 110.8 | — | — | — | — | — | +18 | +55 | 41.4% | -0.31 | 2–4 (33%) | 1–1 | — | +2.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1972 | 1511 | 114.2 | — | — | — | — | -4 | — | +40 | 47.6% | -0.14 | 0–1 | — | — | +0.82 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1973 | 1596 | 110.6 | — | — | — | — | -85 | -50 | -17 | 56.1% | +0.32 | 4–7 (36%) | 5–3 (63%) | 100.0 | +1.82 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1974 | 1649 | 131.7 | — | — | — | — | -143 | -128 | +153 | 50.3% | +0.21 | 11–13 (46%) | 9–7 (56%) | 101.2 | +3.66 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1975 | 1593 | 119.5 | — | — | — | — | -42 | -76 | +115 | 37.3% | -0.92 | 7–6 (54%) | 4–4 (50%) | 103.4 | +0.67 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1976 | 1547 | 129.8 | — | — | — | — | -18 | -47 | +144 | 36.9% | -0.57 | 0–7 (0%) | 5–6 (45%) | 92.0 | +1.86 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1511 | 113.6 | — | — | — | — | -26 | — | +91 | 36.1% | -0.95 | 1–6 (14%) | 2–3 (40%) | 92.7 | +0.29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1493 | 105.4 | — | — | — | — | — | — | +139 | 26.7% | -1.47 | 1–0 | 1–1 | — | +0.87 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1518 | 105.7 | — | — | — | — | — | — | +121 | 40.0% | -0.85 | — | 1–2 (33%) | — | +0.88 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1561 | 118.5 | — | — | — | — | -80 | -98 | +126 | 50.0% | +0.02 | 3–6 (33%) | 5–2 (71%) | 99.8 | +3.76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1547 | 113.1 | — | — | — | — | -107 | — | +156 | 46.3% | -0.44 | 2–7 (22%) | 3–2 (60%) | 95.0 | +1.73 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 1512 | 93.4 | — | — | — | — | — | — | +73 | 29.4% | -1.41 | 1–1 | 0–1 | — | +0.29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1726 | 122.5 | — | — | — | — | -73 | -75 | +91 | 44.5% | -0.31 | 34–61 (36%) | 36–32 (53%) | 95.2 | +6.97 | Career | 1500 | 98.3 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +9.00 |
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.
Isao Kobayashi
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Syd Ball | 0 | 1 | 1 | Jan 1, 1969 | — |