H2H data updated: 2026-09-08 00:00 UTC

Jeff Simpson vs Toshiro Sakai H2H: 0-1

Toshiro Sakai holds a 1–0 lead over Jeff Simpson in their ATP head-to-head. Across 1 main-draw meeting, Toshiro Sakai leads 1–0 on hard courts. Most recently, Toshiro Sakai won the 1973 Osaka round of 32 6-1 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.

Jeff Simpson
NZL Age 75 Right-Handed
H2H
0 – 1
1 main-draw meetings
Toshiro Sakai
JPN Age 78 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Toshiro Sakai 6-1 6-2 Jeff Simpson #76 Match data Oct 10, 1973* R32 Osaka ATP 250 Hard

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
Jeff Simpson #735 #66 0 1,587 47 94 33.3% 0 0 0 0 0 0
Toshiro Sakai — — — 1,644 — — — 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 Jeff Simpson Toshiro Sakai
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 0–1 0.0% — 1,474 0 0 — — — — — — —
18 1969 0–3 0.0% — 1,418 0 0 — — — — — — —
19 1970 1–1 50.0% — 1,439 0 0 — — — — — — —
20 1971 0–4 0.0% — 1,389 0 0 — — — — — — —
21 1972 8–16 33.3% — 1,445 0 0 — — — — — — —
22 1973 18–21 46.2% #92 1,563 0 0 — — — — — — —
23 1974 12–30 28.6% #132 1,464 0 0 — — — — — — —
24 1975 3–2 60.0% #193 1,544 0 0 — — — — — — —
25 1976 1–2 33.3% — 1,533 0 0 — — — — — — —
29 1980 0–1 0.0% #365 1,516 0 0 — — — — — — —
30 1981 1–2 33.3% — 1,520 0 0 — — — — — — —
31 1982 1–8 11.1% #96 1,446 0 0 — — — — — — —
32 1983 2–3 40.0% #167 1,447 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 Jeff Simpson Toshiro Sakai
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 %
17 1968 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
18 1969 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 1970 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 1971 0 2 2 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — 1968 — — — — — — — — 1 2 3 33.3% — — — —
21 1972 1 3 4 25.0% 3 5 8 37.5% 3 6 9 33.3% 1 2 3 33.3% 1969 — — — — — — — — 0 1 1 0.0% — — — —
22 1973 2 6 8 25.0% 4 7 11 36.4% 12 7 19 63.2% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
23 1974 1 8 9 11.1% 2 7 9 22.2% 3 5 8 37.5% 6 10 16 37.5% 1971 0 1 1 0.0% 0 3 3 0.0% 3 3 6 50.0% — — — —
24 1975 — — — — — — — — 3 1 4 75.0% 0 1 1 0.0% 1972 1 1 2 50.0% 4 4 8 50.0% 2 3 5 40.0% — — — —
25 1976 1 2 3 33.3% — — — — — — — — — — — — 1973 2 2 4 50.0% 3 8 11 27.3% 3 2 5 60.0% — — — —
26 — — — — — — — — — — — — — — — — — 1974 0 1 1 0.0% 2 3 5 40.0% 0 1 1 0.0% — — — —
27 — — — — — — — — — — — — — — — — — 1975 — — — — 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0%
29 1980 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
30 1981 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
31 1982 0 2 2 0.0% 0 2 2 0.0% 1 4 5 20.0% — — — — — — — — — — — — — — — — — — — — —
32 1983 2 1 3 66.7% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
37 — — — — — — — — — — — — — — — — — 1985 0 1 1 0.0% — — — — — — — — — — — —
Career — 8 28 36 22.2% 9 26 35 25.7% 23 26 49 46.9% 7 14 21 33.3% — 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 Jeff Simpson 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
17 1968 1474 98.4 — — — — — — — 40.0% -1.20 0–1 — — +0.07 — — — — — — — — — — — — — — — —
18 1969 1419 93.4 — — — — — — — 20.0% -2.10 0–1 — — +0.27 — — — — — — — — — — — — — — — —
19 1970 1440 105.6 — — — — — — — 62.5% +0.50 0–1 — — +0.09 — — — — — — — — — — — — — — — —
20 1971 1389 95.5 — — — — — — — 0.0% -2.43 — — — +0.56 1968 1475 92.9 — — — — — — +7 27.3% -1.91 1–0 — — +0.35
21 1972 1445 112.6 — — — — +10 +61 +55 33.3% -0.98 2–1 (67%) 0–2 — +0.79 1969 1467 101.7 — — — — — — — 0.0% -2.00 — — — -0.09
22 1973 1563 115.0 — — — — -105 -71 +76 46.8% -0.11 3–5 (38%) 1–2 (33%) 97.8 +2.88 — — — — — — — — — — — — — — — —
23 1974 1464 116.6 — — — — -45 -33 +135 33.3% -0.98 4–10 (29%) 4–10 (29%) 92.5 +1.84 1971 1485 106.1 — — — — — -13 +78 31.3% -1.50 1–0 1–2 (33%) — +0.49
24 1975 1545 117.6 — — — — — — +136 64.3% +0.43 — 3–1 (75%) — +0.35 1972 1529 106.2 — — — — — -10 +21 51.2% +0.07 1–3 (25%) 1–2 (33%) 97.0 +1.79
25 1976 1534 96.6 — — — — -129 — — 42.9% -1.57 0–1 1–0 — +0.49 1973 1604 120.0 — — — — -14 -103 +2 40.4% -0.50 3–3 (50%) 1–4 (20%) 99.2 +0.19
26 — — — — — — — — — — — — — — — — 1974 1578 106.7 — — — — — -73 — 35.0% -1.00 0–2 1–0 — +0.35
27 — — — — — — — — — — — — — — — — 1975 1496 93.2 — — — — — -27 — 15.4% -2.54 0–1 1–0 — +0.71
29 1980 1516 98.9 — — — — — — — 0.0% -1.50 — 0–1 — +0.24 — — — — — — — — — — — — — — — —
30 1981 1520 108.6 — — — — -109 — — 42.9% +0.14 0–1 0–1 — +0.03 — — — — — — — — — — — — — — — —
31 1982 1446 93.8 — — — — — — +167 11.1% -2.11 1–0 1–3 (25%) — +0.56 — — — — — — — — — — — — — — — —
32 1983 1448 99.1 — — — — -27 — — 36.4% -0.82 1–0 0–2 — +0.86 — — — — — — — — — — — — — — — —
37 — — — — — — — — — — — — — — — — 1985 1487 97.5 — — — — — — — 0.0% -4.00 — — — -0.03
Career — 1588 113.4 — — — — -56 -21 +98 37.2% -0.76 11–21 (34%) 10–22 (31%) 90.6 +6.45 — 1645 109.7 — — — — -14 -57 +32 37.0% -0.91 6–9 (40%) 5–8 (38%) 97.2 +6.06

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.