H2H data updated: 2026-09-13 00:00 UTC

Betsy Nagelsen vs Tina Mochizuki H2H: 1-1

Betsy Nagelsen and Tina Mochizuki are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Betsy Nagelsen leads 1–0 on grass, while Tina Mochizuki leads 1–0 on hard courts. Most recently, Betsy Nagelsen won the 1987 Brisbane International round of 64 6-3 6-1.

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Betsy Nagelsen
USA Age 69 Right-Handed 175 cm / 5'9"
H2H
1 – 1
2 main-draw meetings
Tina Mochizuki
USA Age 73

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Betsy Nagelsen #46 6-3 6-1 Tina Mochizuki Match data Dec 31, 1986* R64 Brisbane International WTA 500 Grass
Tina Mochizuki 6-2 2-6 6-3 Betsy Nagelsen #31 Match data Mar 28, 1986* R16 Phoenix WTA 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
Betsy Nagelsen #692 #25 28 1,890 266 324 45.1% 0 0 0 0 6 6
Tina Mochizuki — — — 1,679 84 134 38.5% 0 0 0 0 1 1

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 Betsy Nagelsen Tina Mochizuki
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1972 4–2 66.7% — 1,511 0 1 1968 0–1 0.0% — 1,484 0 0
16 1973 1–3 25.0% — 1,494 0 1 1969 0–2 0.0% — 1,449 0 0
17 1974 27–18 60.0% — 1,724 0 3 1970 0–2 0.0% — 1,424 0 0
18 1975 18–17 51.4% — 1,790 0 3 1971 2–3 40.0% — 1,445 0 0
19 1976 11–19 36.7% — 1,709 0 3 1972 3–5 37.5% — 1,432 0 0
20 1977 8–15 34.8% — 1,678 0 3 1973 3–2 60.0% — 1,463 0 0
21 1978 13–24 35.1% — 1,659 0 3 1974 0–1 0.0% — 1,452 0 0
22 1979 18–19 48.6% — 1,694 0 5 — — — — — — —
23 1980 22–27 44.9% — 1,753 0 5 — — — — — — —
24 1981 20–21 48.8% — 1,806 0 6 — — — — — — —
25 1982 12–17 41.4% — 1,705 0 6 1978 0–1 0.0% — 1,438 0 0
26 1983 18–22 45.0% — 1,692 0 6 — — — — — — —
27 1984 11–18 37.9% #77 1,630 0 6 1980 15–10 60.0% — 1,552 0 0
28 1985 14–12 53.8% #81 1,713 0 6 1981 13–7 65.0% — 1,612 0 1
29 1986 18–17 51.4% #46 1,699 0 6 1982 6–3 66.7% — 1,629 0 1
30 1987 13–15 46.4% #61 1,645 0 6 1983 11–13 45.8% — 1,602 0 1
31 1988 11–19 36.7% #109 1,585 0 6 1984 5–17 22.7% — 1,454 0 1
32 1989 18–15 54.5% #45 1,662 0 6 1985 5–12 29.4% — 1,475 0 1
33 1990 8–12 40.0% #96 1,639 0 6 1986 11–19 36.7% — 1,521 0 1
34 1991 0–2 0.0% #337 1,607 0 6 1987 8–25 24.2% — 1,455 0 1
35 1992 1–5 16.7% #418 1,561 0 6 1988 2–11 15.4% — 1,411 0 1
36 1993 0–4 0.0% #394 1,510 0 6 — — — — — — —
37 1994 0–1 0.0% #692 1,509 0 6 — — — — — — —

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 Betsy Nagelsen Tina Mochizuki
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 %
15 1972 — — — — 2 1 3 66.7% 0 1 1 0.0% — — — — 1968 0 1 1 0.0% — — — — — — — — — — — —
16 1973 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — 1969 0 2 2 0.0% — — — — — — — — — — — —
17 1974 3 2 5 60.0% 6 6 12 50.0% 13 6 19 68.4% 0 4 4 0.0% 1970 0 2 2 0.0% — — — — — — — — — — — —
18 1975 5 5 10 50.0% 6 5 11 54.5% 2 3 5 40.0% 0 1 1 0.0% 1971 — — — — 2 3 5 40.0% — — — — — — — —
19 1976 0 2 2 0.0% 5 11 16 31.3% 3 3 6 50.0% 3 3 6 50.0% 1972 2 2 4 50.0% 1 3 4 25.0% — — — — — — — —
20 1977 3 3 6 50.0% 1 4 5 20.0% 3 5 8 37.5% 1 3 4 25.0% 1973 3 2 5 60.0% — — — — — — — — — — — —
21 1978 3 7 10 30.0% 4 6 10 40.0% 5 5 10 50.0% 1 6 7 14.3% 1974 0 1 1 0.0% — — — — — — — — — — — —
22 1979 4 7 11 36.4% 0 2 2 0.0% 4 4 8 50.0% 2 6 8 25.0% — — — — — — — — — — — — — — — — —
23 1980 7 7 14 50.0% 0 2 2 0.0% 10 7 17 58.8% 5 11 16 31.3% — — — — — — — — — — — — — — — — —
24 1981 5 6 11 45.5% 1 4 5 20.0% 11 4 15 73.3% 3 7 10 30.0% — — — — — — — — — — — — — — — — —
25 1982 2 4 6 33.3% 2 3 5 40.0% 3 3 6 50.0% 5 7 12 41.7% — — — — — — — — — — — — — — — — —
26 1983 2 7 9 22.2% 2 5 7 28.6% 4 5 9 44.4% 7 4 11 63.6% — — — — — — — — — — — — — — — — —
27 1984 9 7 16 56.3% 0 4 4 0.0% 2 7 9 22.2% — — — — 1980 8 6 14 57.1% — — — — — — — — — — — —
28 1985 6 5 11 54.5% 0 1 1 0.0% 7 5 12 58.3% 1 1 2 50.0% 1981 0 1 1 0.0% — — — — — — — — — — — —
29 1986 6 10 16 37.5% 0 1 1 0.0% 7 3 10 70.0% 5 3 8 62.5% 1982 5 2 7 71.4% — — — — — — — — 1 1 2 50.0%
30 1987 8 6 14 57.1% — — — — 5 5 10 50.0% 0 4 4 0.0% 1983 3 5 8 37.5% 2 3 5 40.0% 4 4 8 50.0% — — — —
31 1988 5 13 18 27.8% — — — — 4 5 9 44.4% 2 1 3 66.7% 1984 2 9 11 18.2% 2 5 7 28.6% 1 3 4 25.0% — — — —
32 1989 12 10 22 54.5% — — — — 6 3 9 66.7% 0 2 2 0.0% 1985 3 4 7 42.9% 0 3 3 0.0% 1 2 3 33.3% 1 3 4 25.0%
33 1990 3 7 10 30.0% 0 2 2 0.0% 5 3 8 62.5% — — — — 1986 7 9 16 43.8% 1 4 5 20.0% 1 3 4 25.0% 2 3 5 40.0%
34 1991 — — — — — — — — 0 2 2 0.0% — — — — 1987 3 9 12 25.0% 1 6 7 14.3% 3 6 9 33.3% 1 4 5 20.0%
35 1992 0 2 2 0.0% — — — — 1 1 2 50.0% 0 2 2 0.0% 1988 0 7 7 0.0% — — — — 2 3 5 40.0% 0 1 1 0.0%
36 1993 0 2 2 0.0% — — — — — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — —
37 1994 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 84 114 198 42.4% 29 59 88 33.0% 95 80 175 54.3% 35 67 102 34.3% — 36 62 98 36.7% 9 27 36 25.0% 12 21 33 36.4% 5 12 17 29.4%

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 Betsy Nagelsen Tina Mochizuki
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
15 1972 1511 98.7 — — — — — +28 — 53.8% +0.23 2–1 (67%) 1–1 — +0.77 1968 1484 98.0 — — — — — — — 0.0% -2.50 — — — +0.09
16 1973 1495 98.7 — — — — — — — 40.0% -1.00 0–2 1–0 — +0.55 1969 1450 94.9 — — — — — — — 20.0% -1.60 0–1 — — +0.55
17 1974 1725 133.0 — — — — -176 -202 +77 57.7% +0.46 8–6 (57%) 5–6 (45%) 103.4 +0.58 1970 1425 82.2 — — — — — — — 0.0% -5.75 — — — +0.38
18 1975 1791 125.1 — — — — -124 -166 -38 45.7% -0.44 4–4 (50%) 3–3 (50%) 101.5 -3.05 1971 1446 105.4 — — — — — +83 — 41.7% -1.67 1–1 2–1 (67%) — +0.16
19 1976 1709 124.2 — — — — -65 -116 +70 41.4% -0.76 3–7 (30%) 1–1 — -1.73 1972 1432 89.9 — — — — +20 +60 — 35.3% -1.53 1–0 1–0 — +1.65
20 1977 1678 123.8 — — — — -30 -105 +46 37.9% -0.62 6–6 (50%) 1–2 (33%) — +0.05 1973 1464 107.3 — — — — +59 — — 54.5% +0.55 1–0 0–1 — +0.92
21 1978 1659 129.6 — — — — -99 -85 +99 40.7% -0.58 4–10 (29%) 3–7 (30%) 92.4 -0.84 1974 1453 100.4 — — — — — — — 33.3% -1.33 0–1 — — +0.16
22 1979 1695 122.8 — — — — -132 — +12 48.9% +0.08 8–8 (50%) 1–3 (25%) 98.5 +1.65 — — — — — — — — — — — — — — — —
23 1980 1753 130.7 — — — — -148 — +40 47.9% -0.41 7–12 (37%) 6–2 (75%) 102.2 -1.78 — — — — — — — — — — — — — — — —
24 1981 1806 134.9 — — — — -129 -305 +99 49.5% -0.18 8–7 (53%) 5–5 (50%) 103.7 -3.53 — — — — — — — — — — — — — — — —
25 1982 1705 123.2 — — — — -99 -214 +170 47.3% -0.34 5–11 (31%) 9–3 (75%) 100.0 -0.40 1978 1438 98.2 — — — — — — — 0.0% -2.00 — — — +0.06
26 1983 1693 126.7 — — — — -32 -138 +114 46.3% -0.46 7–8 (47%) 7–6 (54%) 102.2 +0.98 — — — — — — — — — — — — — — — —
27 1984 1631 126.4 — — — — +59 -141 +117 41.4% -0.51 5–7 (42%) 7–3 (70%) 99.2 +0.69 1980 1552 114.3 — — — — +26 — — 58.6% +0.64 4–4 (50%) 2–2 (50%) 102.3 +2.50
28 1985 1714 129.5 — — — — -26 — +87 54.2% +0.36 7–4 (64%) 1–2 (33%) — +1.17 1981 1612 122.2 — — — — — — — 61.2% +0.75 5–4 (56%) 2–2 (50%) 101.0 -0.50
29 1986 1699 131.1 — — — — -55 — +171 51.8% +0.01 6–7 (46%) 4–3 (57%) 98.8 +1.66 1982 1630 109.6 — — — — -12 — — 57.9% +0.47 2–1 (67%) — — +1.68
30 1987 1646 121.6 — — — — -24 — +148 46.2% 0.00 5–6 (45%) 4–5 (44%) 97.1 +1.69 1983 1603 109.9 — — — — -3 -38 +4 45.0% -0.18 7–5 (58%) 2–5 (29%) 99.8 +2.25
31 1988 1586 116.1 — — — — -27 — +128 42.5% -0.27 4–9 (31%) 5–8 (38%) 93.3 +1.55 1984 1454 106.3 — — — — +20 +74 +143 34.6% -0.73 0–8 (0%) 1–5 (17%) 87.8 +1.89
32 1989 1662 126.0 — — — — -56 — +96 50.6% +0.04 11–6 (65%) 3–4 (43%) 105.8 +1.48 1985 1476 106.7 — — — — +39 -8 +73 27.8% -1.78 2–2 (50%) 1–2 (33%) 100.1 +0.99
33 1990 1640 115.0 — — — — -81 — +173 40.0% -0.60 3–2 (60%) 2–4 (33%) 100.0 +0.09 1986 1522 112.2 — — — — +26 -72 +33 36.4% -1.26 4–2 (67%) 6–3 (67%) 106.4 +1.60
34 1991 1608 97.2 — — — — — — — 20.0% -2.40 0–1 — — -0.01 1987 1455 108.3 — — — — +35 -45 +65 27.4% -1.58 3–6 (33%) 2–2 (50%) 99.7 +0.36
35 1992 1561 105.4 — — — — -52 — — 26.7% -1.67 1–2 (33%) 1–0 — +0.03 1988 1412 109.7 — — — — -11 — +90 25.8% -1.32 1–4 (20%) 1–2 (33%) 96.9 +0.19
36 1993 1511 98.5 — — — — -47 — — 20.0% -2.70 0–2 0–1 — +0.17 — — — — — — — — — — — — — — — —
37 1994 1509 102.5 — — — — — — — 0.0% -5.50 — — — -0.16 — — — — — — — — — — — — — — — —
Career — 1891 131.9 — — — — -73 -148 +94 46.5% -0.28 104–128 (45%) 70–69 (50%) 101.1 +0.27 — 1680 112.0 — — — — +21 +8 +60 40.2% -0.71 31–39 (44%) 20–25 (44%) 98.4 +6.88

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.