Zan Guerry
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Jaime Fillol | 0 | 3 | 3 | Aug 9, 1979 | H2H |
| Victor Pecci | 1 | 2 | 3 | Nov 25, 1977 | H2H |
| Onny Parun | 1 | 2 | 3 | Nov 24, 1977 | H2H |
| Jimmy Connors | 0 | 3 | 3 | Sep 6, 1977 | H2H |
| Dick Stockton | 0 | 3 | 3 | Aug 11, 1977 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Zan Guerry vs Toshiro Sakai H2H: 1-0
Zan Guerry holds a 1–0 lead over Toshiro Sakai in their ATP head-to-head. Across 1 main-draw meeting, Zan Guerry leads 1–0 on clay. Most recently, Zan Guerry won the 1972 Cincinnati Open round of 64 7-5 3-6 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
1
–
0
1 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Zan Guerry | 7-5 3-6 6-4 | Toshiro Sakai | Match data | Aug 2, 1972* | R64 | Cincinnati 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zan Guerry | #490 | #98 | 0 | 1,596 | 41 | 77 | 34.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Toshiro Sakai | — | — | — | 1,645 | — | — | — | 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 | Zan Guerry | Toshiro Sakai | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | 1968 | 4–6 | 40.0% | — | 1,476 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1969 | 8–10 | 44.4% | — | 1,526 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1970 | 1–4 | 20.0% | — | 1,493 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1971 | 4–6 | 40.0% | — | 1,500 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1972 | 5–7 | 41.7% | — | 1,507 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1973 | 3–5 | 37.5% | #203 | 1,511 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1974 | 1–1 | 50.0% | #228 | 1,532 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1975 | 2–2 | 50.0% | #205 | 1,561 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1976 | 0–6 | 0.0% | #176 | 1,496 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1977 | 8–16 | 33.3% | #98 | 1,561 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1978 | 2–7 | 22.2% | #279 | 1,521 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1979 | 1–3 | 25.0% | #326 | 1,517 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1980 | 1–2 | 33.3% | — | 1,482 | 0 | 0 | — | — | — | — | — | — | — |
| 32 | 1981 | 0–1 | 0.0% | — | 1,476 | 0 | 0 | — | — | — | — | — | — | — |
| 33 | 1982 | 1–1 | 50.0% | — | 1,497 | 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 | Zan Guerry | Toshiro Sakai | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 19 | 1968 | — | — | — | — | 3 | 3 | 6 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1969 | 0 | 1 | 1 | 0.0% | 6 | 5 | 11 | 54.5% | 2 | 4 | 6 | 33.3% | — | — | — | — | 1968 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 21 | 1970 | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 1969 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 22 | 1971 | 2 | 2 | 4 | 50.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1972 | 1 | 2 | 3 | 33.3% | 4 | 4 | 8 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1971 | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | 3 | 3 | 6 | 50.0% | — | — | — | — |
| 24 | 1973 | 2 | 4 | 6 | 33.3% | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 1972 | 1 | 1 | 2 | 50.0% | 4 | 4 | 8 | 50.0% | 2 | 3 | 5 | 40.0% | — | — | — | — |
| 25 | 1974 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1973 | 2 | 2 | 4 | 50.0% | 3 | 8 | 11 | 27.3% | 3 | 2 | 5 | 60.0% | — | — | — | — |
| 26 | 1975 | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1974 | 0 | 1 | 1 | 0.0% | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 27 | 1976 | 0 | 2 | 2 | 0.0% | 0 | 3 | 3 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1975 | — | — | — | — | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 28 | 1977 | 0 | 3 | 3 | 0.0% | 8 | 11 | 19 | 42.1% | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1978 | — | — | — | — | 2 | 3 | 5 | 40.0% | — | — | — | — | 0 | 4 | 4 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1979 | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1980 | — | — | — | — | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1981 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1982 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1985 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 6 | 17 | 23 | 26.1% | 30 | 42 | 72 | 41.7% | 5 | 11 | 16 | 31.2% | 0 | 7 | 7 | 0.0% | — | 3 | 6 | 9 | 33.3% | 9 | 21 | 30 | 30.0% | 9 | 13 | 22 | 40.9% | 0 | 1 | 1 | 0.0% |
Advanced Statistics Comparison by Age
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Zan Guerry | Toshiro Sakai | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 19 | 1968 | 1477 | 99.0 | — | — | — | — | — | +41 | -13 | 41.7% | -0.50 | 1–1 | — | — | -0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1969 | 1527 | 112.6 | — | — | — | — | — | +58 | -60 | 47.9% | -0.10 | 3–3 (50%) | — | — | -0.60 | 1968 | 1475 | 92.9 | — | — | — | — | — | — | +7 | 27.3% | -1.91 | 1–0 | — | — | +0.35 |
| 21 | 1970 | 1493 | 96.6 | — | — | — | — | — | +59 | — | 30.8% | -1.92 | 1–2 (33%) | — | — | +0.15 | 1969 | 1467 | 101.7 | — | — | — | — | — | — | — | 0.0% | -2.00 | — | — | — | -0.09 |
| 22 | 1971 | 1500 | 108.9 | — | — | — | — | +4 | +68 | — | 34.8% | -0.43 | 2–1 (67%) | 0–3 (0%) | 99.1 | +0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1972 | 1507 | 102.0 | — | — | — | — | -12 | +64 | — | 45.5% | -0.03 | 3–4 (43%) | 3–6 (33%) | 95.6 | +0.97 | 1971 | 1485 | 106.1 | — | — | — | — | — | -13 | +78 | 31.3% | -1.50 | 1–0 | 1–2 (33%) | — | +0.49 |
| 24 | 1973 | 1511 | 109.4 | — | — | — | — | -1 | — | — | 45.8% | -0.17 | 2–3 (40%) | 2–2 (50%) | 101.5 | +0.71 | 1972 | 1529 | 106.2 | — | — | — | — | — | -11 | +20 | 51.2% | +0.07 | 1–3 (25%) | 1–2 (33%) | 97.0 | +1.78 |
| 25 | 1974 | 1533 | 108.8 | — | — | — | — | — | — | — | 50.0% | -0.50 | — | 1–0 | — | -0.18 | 1973 | 1604 | 120.1 | — | — | — | — | -13 | -102 | +2 | 40.4% | -0.50 | 3–3 (50%) | 1–4 (20%) | 99.2 | +0.18 |
| 26 | 1975 | 1562 | 108.4 | — | — | — | — | — | — | — | 44.4% | -0.22 | 1–0 | 0–1 | — | +0.08 | 1974 | 1578 | 106.7 | — | — | — | — | — | -72 | — | 35.0% | -1.00 | 0–2 | 1–0 | — | +0.35 |
| 27 | 1976 | 1497 | 112.0 | — | — | — | — | -18 | +37 | — | 14.3% | -1.71 | 0–1 | 0–1 | — | +0.12 | 1975 | 1497 | 93.2 | — | — | — | — | — | -28 | — | 15.4% | -2.54 | 0–1 | 1–0 | — | +0.71 |
| 28 | 1977 | 1561 | 136.0 | — | — | — | — | -118 | +40 | — | 39.3% | -0.73 | 2–6 (25%) | 1–2 (33%) | — | -0.81 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1978 | 1522 | 109.4 | — | — | — | — | -106 | +76 | — | 37.5% | -1.04 | 1–5 (17%) | 2–0 | — | +0.86 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1979 | 1517 | 104.3 | — | — | — | — | — | +58 | — | 40.0% | -0.70 | 0–2 | — | — | -0.17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 1980 | 1483 | 91.9 | — | — | — | — | — | — | — | 0.0% | -3.75 | — | — | — | +0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 1981 | 1477 | 100.2 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | -0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 1982 | 1498 | 109.7 | — | — | — | — | — | — | — | 40.0% | -0.80 | 1–0 | — | — | -0.23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1985 | 1487 | 97.5 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | -0.03 |
| Career | — | 1596 | 119.1 | — | — | — | — | -44 | +53 | -41 | 39.6% | -0.63 | 17–28 (38%) | 9–15 (38%) | 94.9 | +1.03 | — | 1645 | 109.7 | — | — | — | — | -13 | -56 | +32 | 37.0% | -0.91 | 6–9 (40%) | 5–8 (38%) | 97.2 | +6.03 |
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.
Toshiro Sakai
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Gerald Battrick | 0 | 3 | 3 | Jul 24, 1975 | — |
| Ross Case | 1 | 1 | 2 | Oct 16, 1974 | — |
| Ken Rosewall | 0 | 2 | 2 | Oct 13, 1973 | — |
| Hans Kary | 2 | 0 | 2 | Jun 29, 1973 | — |
| Robert Seguso | 0 | 1 | 1 | Oct 16, 1985 | — |