H2H data updated: 2026-10-28 00:00 UTC

Betsy Nagelsen vs Sandy Collins H2H: 0-1

Sandy Collins holds a 1–0 lead over Betsy Nagelsen in their WTA head-to-head. Across 1 main-draw meeting, Sandy Collins leads 1–0 on hard courts. Most recently, Sandy Collins won the 1982 Canadian Open round of 32 6-7 7-5 6-0.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Betsy Nagelsen
USA Age 70 Right-Handed 175 cm / 5'9"
H2H
0 – 1
1 main-draw meetings
Sandy Collins
USA Age 68

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sandy Collins 6-7 7-5 6-0 Betsy Nagelsen Match data Aug 18, 1982* R32 Canadian Open WTA 500 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 — #25 28 1,892 266 324 45.1% 0 0 0 0 6 6
Sandy Collins — — — 1,824 90 152 37.2% 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 Betsy Nagelsen Sandy Collins
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 — — — — — — — 1973 1–1 50.0% — 1,497 0 0
15 1972 4–2 66.7% — 1,511 0 1 — — — — — — —
16 1973 1–3 25.0% — 1,494 0 1 — — — — — — —
17 1974 27–18 60.0% — 1,724 0 3 — — — — — — —
18 1975 18–17 51.4% — 1,790 0 3 — — — — — — —
19 1976 11–19 36.7% — 1,707 0 3 1978 7–7 50.0% — 1,541 0 0
20 1977 8–15 34.8% — 1,677 0 3 1979 2–7 22.2% — 1,498 0 0
21 1978 13–24 35.1% — 1,657 0 3 1980 10–12 45.5% — 1,632 0 0
22 1979 18–19 48.6% — 1,694 0 5 1981 25–20 55.6% — 1,787 0 0
23 1980 22–27 44.9% — 1,755 0 5 1982 14–21 40.0% — 1,734 0 0
24 1981 20–21 48.8% — 1,808 0 6 1983 13–20 39.4% — 1,684 0 0
25 1982 12–17 41.4% — 1,706 0 6 1984 9–18 33.3% — 1,600 0 0
26 1983 18–22 45.0% — 1,693 0 6 1985 1–9 10.0% — 1,508 0 0
27 1984 11–18 37.9% #77 1,631 0 6 1986 0–1 0.0% — 1,500 0 0
28 1985 14–12 53.8% — 1,714 0 6 1987 0–4 0.0% — 1,453 0 0
29 1986 18–17 51.4% #46 1,699 0 6 1988 3–5 37.5% — 1,491 0 0
30 1987 13–15 46.4% #61 1,646 0 6 1989 2–8 20.0% — 1,473 0 0
31 1988 11–19 36.7% #109 1,586 0 6 1990 1–9 10.0% — 1,421 0 0
32 1989 18–15 54.5% #45 1,662 0 6 1991 1–5 16.7% — 1,406 0 0
33 1990 8–12 40.0% #96 1,640 0 6 1992 1–2 33.3% — 1,413 0 0
34 1991 0–2 0.0% — 1,608 0 6 1993 0–1 0.0% — 1,407 0 0
35 1992 1–5 16.7% #418 1,561 0 6 1994 0–2 0.0% — 1,393 0 0
36 1993 0–4 0.0% — 1,511 0 6 — — — — — — —
37 1994 0–1 0.0% — 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 Sandy Collins
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 %
14 — — — — — — — — — — — — — — — — — 1973 1 1 2 50.0% — — — — — — — — — — — —
15 1972 — — — — 2 1 3 66.7% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
16 1973 1 1 2 50.0% 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% — — — — — — — — — — — — — — — — —
18 1975 5 5 10 50.0% 6 5 11 54.5% 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
19 1976 0 2 2 0.0% 5 11 16 31.3% 3 3 6 50.0% 3 3 6 50.0% 1978 3 3 6 50.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
20 1977 3 3 6 50.0% 1 4 5 20.0% 3 5 8 37.5% 1 3 4 25.0% 1979 0 1 1 0.0% 1 4 5 20.0% 1 1 2 50.0% 0 1 1 0.0%
21 1978 3 7 10 30.0% 4 6 10 40.0% 5 5 10 50.0% 1 6 7 14.3% 1980 4 6 10 40.0% 1 1 2 50.0% 0 1 1 0.0% 5 4 9 55.6%
22 1979 4 7 11 36.4% 0 2 2 0.0% 4 4 8 50.0% 2 6 8 25.0% 1981 4 5 9 44.4% 11 6 17 64.7% 3 2 5 60.0% 7 7 14 50.0%
23 1980 7 7 14 50.0% 0 2 2 0.0% 10 7 17 58.8% 5 11 16 31.3% 1982 3 2 5 60.0% 4 5 9 44.4% 0 2 2 0.0% 7 12 19 36.8%
24 1981 5 6 11 45.5% 1 4 5 20.0% 11 4 15 73.3% 3 7 10 30.0% 1983 5 6 11 45.5% 2 6 8 25.0% 2 3 5 40.0% 4 5 9 44.4%
25 1982 2 4 6 33.3% 2 3 5 40.0% 3 3 6 50.0% 5 7 12 41.7% 1984 7 6 13 53.8% 0 3 3 0.0% 0 6 6 0.0% 2 3 5 40.0%
26 1983 2 7 9 22.2% 2 5 7 28.6% 4 5 9 44.4% 7 4 11 63.6% 1985 1 5 6 16.7% 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0%
27 1984 9 7 16 56.3% 0 4 4 0.0% 2 7 9 22.2% — — — — 1986 — — — — — — — — 0 1 1 0.0% — — — —
28 1985 6 5 11 54.5% 0 1 1 0.0% 7 5 12 58.3% 1 1 2 50.0% 1987 0 2 2 0.0% — — — — 0 2 2 0.0% — — — —
29 1986 6 10 16 37.5% 0 1 1 0.0% 7 3 10 70.0% 5 3 8 62.5% 1988 3 4 7 42.9% — — — — 0 1 1 0.0% — — — —
30 1987 8 6 14 57.1% — — — — 5 5 10 50.0% 0 4 4 0.0% 1989 1 5 6 16.7% — — — — 0 1 1 0.0% 1 2 3 33.3%
31 1988 5 13 18 27.8% — — — — 4 5 9 44.4% 2 1 3 66.7% 1990 0 5 5 0.0% 1 3 4 25.0% — — — — 0 1 1 0.0%
32 1989 12 10 22 54.5% — — — — 6 3 9 66.7% 0 2 2 0.0% 1991 1 2 3 33.3% 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0%
33 1990 3 7 10 30.0% 0 2 2 0.0% 5 3 8 62.5% — — — — 1992 1 1 2 50.0% 0 1 1 0.0% — — — — — — — —
34 1991 — — — — — — — — 0 2 2 0.0% — — — — 1993 — — — — — — — — — — — — 0 1 1 0.0%
35 1992 0 2 2 0.0% — — — — 1 1 2 50.0% 0 2 2 0.0% 1994 0 2 2 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% — 34 56 90 37.8% 20 32 52 38.5% 6 24 30 20.0% 26 38 64 40.6%

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 Sandy Collins
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
14 — — — — — — — — — — — — — — — — 1973 1497 99.4 — — — — — — — 50.0% 0.00 — — — +0.62
15 1972 1511 98.7 — — — — — +28 — 53.8% +0.23 2–1 (67%) 1–1 — +0.77 — — — — — — — — — — — — — — — —
16 1973 1495 98.7 — — — — — — — 40.0% -1.00 0–2 1–0 — +0.54 — — — — — — — — — — — — — — — —
17 1974 1725 133.0 — — — — -176 -202 +77 57.7% +0.46 8–6 (57%) 5–6 (45%) 103.4 +0.49 — — — — — — — — — — — — — — — —
18 1975 1791 125.1 — — — — -124 -166 -38 45.7% -0.44 4–4 (50%) 3–3 (50%) 101.5 -3.24 — — — — — — — — — — — — — — — —
19 1976 1708 124.4 — — — — -64 -115 +73 41.4% -0.76 3–7 (30%) 1–1 — -1.59 1978 1541 118.0 — — — — +85 — — 56.3% +0.66 0–4 (0%) — — +1.24
20 1977 1678 124.1 — — — — -30 -106 +48 37.9% -0.62 6–6 (50%) 1–2 (33%) — +0.11 1979 1498 107.8 — — — — — -8 — 30.0% -0.55 0–2 0–1 — +1.31
21 1978 1658 129.7 — — — — -102 -84 +101 41.2% -0.57 4–11 (27%) 3–7 (30%) 91.9 -1.33 1980 1632 129.0 — — — — +7 — — 48.9% +0.22 3–2 (60%) 1–2 (33%) 101.5 -0.07
22 1979 1695 123.1 — — — — -131 — +13 48.9% +0.08 8–8 (50%) 1–3 (25%) 98.5 +1.74 1981 1787 138.1 — — — — -48 -82 -188 52.6% -0.04 6–3 (67%) 5–4 (56%) 104.5 -1.55
23 1980 1756 131.7 — — — — -144 — +38 47.9% -0.41 7–12 (37%) 6–2 (75%) 102.2 -2.08 1982 1734 126.6 — — — — -17 -44 — 38.7% -0.91 6–3 (67%) 2–4 (33%) 103.2 -0.37
24 1981 1809 135.3 — — — — -128 -307 +95 49.5% -0.18 8–7 (53%) 5–5 (50%) 103.7 -3.62 1983 1685 124.3 — — — — +34 -29 -111 40.8% -0.63 2–3 (40%) 1–5 (17%) 95.5 -0.09
25 1982 1706 123.4 — — — — -98 -215 +169 47.3% -0.34 5–11 (31%) 9–3 (75%) 100.0 +0.16 1984 1601 117.8 — — — — +112 -8 -91 34.4% -0.97 4–5 (44%) 1–2 (33%) 98.9 -0.22
26 1983 1693 127.0 — — — — -32 -138 +114 46.3% -0.46 7–8 (47%) 7–6 (54%) 102.2 +0.86 1985 1508 99.3 — — — — +102 — — 18.2% -2.36 0–2 1–0 — +0.69
27 1984 1632 126.6 — — — — +58 -142 +116 41.4% -0.51 5–7 (42%) 7–3 (70%) 99.2 +0.78 1986 1500 101.5 — — — — — — — 33.3% -2.33 0–1 — — -0.03
28 1985 1714 129.7 — — — — -25 — +88 54.2% +0.36 7–4 (64%) 1–2 (33%) — +1.14 1987 1454 94.2 — — — — — — — 11.1% -2.56 0–1 — — +0.23
29 1986 1700 131.2 — — — — -55 — +170 51.8% +0.01 6–7 (46%) 4–3 (57%) 98.8 +1.52 1988 1491 114.4 — — — — +85 — — 42.1% -0.63 1–2 (33%) 1–3 (25%) 97.4 -0.02
30 1987 1646 121.7 — — — — -24 — +150 46.2% 0.00 5–6 (45%) 4–5 (44%) 97.1 +1.59 1989 1473 103.5 — — — — +56 — — 23.8% -1.71 0–1 2–0 — +0.43
31 1988 1586 116.1 — — — — -26 — +128 42.5% -0.27 4–9 (31%) 5–8 (38%) 93.3 +1.50 1990 1422 95.6 — — — — +39 +112 — 17.4% -2.65 1–2 (33%) — — +0.17
32 1989 1663 126.1 — — — — -56 — +97 50.6% +0.04 11–6 (65%) 3–4 (43%) 105.8 +1.46 1991 1406 104.6 — — — — +39 — — 21.4% -2.00 1–1 0–1 — +0.16
33 1990 1640 115.1 — — — — -81 — +173 40.0% -0.60 3–2 (60%) 2–4 (33%) 100.0 +0.09 1992 1413 104.4 — — — — — — — 33.3% -0.83 — 0–1 — +0.18
34 1991 1608 97.2 — — — — — — — 20.0% -2.40 0–1 — — -0.01 1993 1408 95.8 — — — — — — — 0.0% -5.00 — — — -0.07
35 1992 1561 105.4 — — — — -50 — — 26.7% -1.67 1–2 (33%) 1–0 — +0.03 1994 1394 103.0 — — — — — — — 33.3% -1.33 0–2 1–1 — -0.05
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 — 1893 132.2 — — — — -73 -148 +94 46.5% -0.28 104–129 (45%) 70–69 (50%) 101.0 +0.16 — 1825 126.0 — — — — +28 -36 -128 39.2% -0.75 24–34 (41%) 15–24 (38%) 92.7 +1.07

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.