H2H data updated: 2026-07-19 02:51 UTC
Kaoru Okamoto vs Betsy Nagelsen H2H: 1-1
Kaoru Okamoto and Betsy Nagelsen are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, they are tied 1–1 on hard courts. Most recently, Kaoru Okamoto won the 1990 Tokyo Japan Open fourth round 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.
JPN
Right-Handed
H2H
1
–
1
2 main draw meetings
USA
Age 69
Right-Handed
175 cm / 5'9"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Apr 14, 1990* | Tokyo Japan Open | WTA 250 | R16 | Hard | Kaoru Okamoto | 6-1 6-2 | Betsy Nagelsen | Match data |
| Apr 19, 1987* | Tokyo Japan Open | WTA 250 | QF | Hard | Betsy Nagelsen | 7-6 6-4 | Kaoru Okamoto | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kaoru Okamoto | #225 | #75 | 14 | 1,589 | 23 | 44 | 34.3% | 0 | 0 | 0 | 1 | 0 | 1 |
| Betsy Nagelsen | #692 | #25 | 28 | 1,885 | 266 | 324 | 45.1% | 0 | 0 | 0 | 0 | 6 | 6 |
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.
| Kaoru Okamoto | Betsy Nagelsen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1978 | 0–1 | 0.0% | — | 1,483 | 0 | 0 | 1972 | 4–2 | 66.7% | — | 1,537 | 0 | 1 |
| 1980 | 0–2 | 0.0% | — | 1,465 | 0 | 0 | 1973 | 1–3 | 25.0% | — | 1,517 | 0 | 1 |
| 1981 | 0–3 | 0.0% | — | 1,441 | 0 | 0 | 1974 | 27–18 | 60.0% | — | 1,730 | 0 | 3 |
| 1983 | 3–2 | 60.0% | — | 1,473 | 0 | 0 | 1975 | 18–17 | 51.4% | — | 1,793 | 0 | 3 |
| 1984 | 0–1 | 0.0% | #189 | 1,465 | 0 | 0 | 1976 | 11–19 | 36.7% | — | 1,709 | 0 | 3 |
| 1985 | 0–1 | 0.0% | — | 1,450 | 0 | 0 | 1977 | 8–15 | 34.8% | — | 1,677 | 0 | 3 |
| 1986 | 2–1 | 66.7% | #151 | 1,480 | 0 | 0 | 1978 | 13–24 | 35.1% | — | 1,659 | 0 | 3 |
| 1987 | 6–8 | 42.9% | #107 | 1,543 | 0 | 0 | 1979 | 18–19 | 48.6% | — | 1,695 | 0 | 5 |
| 1988 | 1–8 | 11.1% | #208 | 1,496 | 0 | 0 | 1980 | 22–27 | 44.9% | — | 1,756 | 0 | 5 |
| 1989 | 5–7 | 41.7% | #115 | 1,508 | 0 | 1 | 1981 | 20–21 | 48.8% | — | 1,803 | 0 | 6 |
| 1990 | 3–6 | 33.3% | #165 | 1,496 | 0 | 1 | 1982 | 12–17 | 41.4% | — | 1,704 | 0 | 6 |
| 1991 | 2–2 | 50.0% | #183 | 1,534 | 0 | 1 | 1983 | 18–22 | 45.0% | — | 1,692 | 0 | 6 |
| 1992 | 1–2 | 33.3% | #225 | 1,536 | 0 | 1 | 1984 | 11–18 | 37.9% | #77 | 1,630 | 0 | 6 |
| — | — | — | — | — | — | — | 1985 | 14–12 | 53.8% | #81 | 1,714 | 0 | 6 |
| — | — | — | — | — | — | — | 1986 | 18–17 | 51.4% | #46 | 1,699 | 0 | 6 |
| — | — | — | — | — | — | — | 1987 | 13–15 | 46.4% | #61 | 1,645 | 0 | 6 |
| — | — | — | — | — | — | — | 1988 | 11–19 | 36.7% | #109 | 1,586 | 0 | 6 |
| — | — | — | — | — | — | — | 1989 | 18–15 | 54.5% | #45 | 1,663 | 0 | 6 |
| — | — | — | — | — | — | — | 1990 | 8–12 | 40.0% | #96 | 1,640 | 0 | 6 |
| — | — | — | — | — | — | — | 1991 | 0–2 | 0.0% | #337 | 1,608 | 0 | 6 |
| — | — | — | — | — | — | — | 1992 | 1–5 | 16.7% | #418 | 1,561 | 0 | 6 |
| — | — | — | — | — | — | — | 1993 | 0–4 | 0.0% | #394 | 1,512 | 0 | 6 |
| — | — | — | — | — | — | — | 1994 | 0–1 | 0.0% | #692 | 1,510 | 0 | 6 |