H2H data updated: 2026-07-18 17:48 UTC

Betsy Nagelsen vs Mary Lou Piatek H2H: 1-8

Mary Lou Piatek holds a 8–1 lead over Betsy Nagelsen in their WTA head-to-head. Across 9 main-draw meetings, Mary Lou Piatek leads 4–0 on hard courts and 3–0 on carpet. Most recently, Mary Lou Piatek won the 1986 Tulsa fourth round 6-4 7-5.

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Betsy Nagelsen
USA Age 69 Right-Handed 175 cm / 5'9"
H2H
1 – 8
9 main draw meetings
Mary Lou Piatek

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Sep 26, 1986* Tulsa WTA 250 R16 Hard Mary Lou Piatek 6-4 7-5 Betsy Nagelsen #34 Match data
Nov 21, 1984* Sydney WTA 500 R64 Grass Mary Lou Piatek 6-4 6-2 Betsy Nagelsen #71 Match data
Aug 13, 1982* Atlanta WTA 250 R16 Hard Mary Lou Piatek 7-5 6-2 Betsy Nagelsen Match data
Dec 4, 1981* Australian Open Grand Slam R64 Grass Betsy Nagelsen 7-5 6-1 Mary Lou Piatek Match data
Oct 15, 1981* Deerfield Beach WTA 250 R32 Hard Mary Lou Piatek 6-2 6-1 Betsy Nagelsen Match data
Aug 15, 1981* Richmond WTA 250 SF Hard Mary Lou Piatek 7-5 4-6 6-3 Betsy Nagelsen Match data
Mar 13, 1981* Dallas WTA 250 R16 Carpet Mary Lou Piatek (w/o) Betsy Nagelsen Match data
Jul 26, 1980* Richmond WTA 250 SF Carpet Mary Lou Piatek 6-0 6-0 Betsy Nagelsen Match data
Feb 20, 1980* Detroit WTA 250 R64 Carpet Mary Lou Piatek 6-3 6-2 Betsy Nagelsen 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
Betsy Nagelsen #692 #25 28 1,885 266 324 45.1% 0 0 0 0 6 6
Mary Lou Piatek — — — 1,936 153 206 42.6% 0 0 0 0 2 2

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.

Betsy Nagelsen Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1972 4–2 66.7% — 1,537 0 1 1978 0–1 0.0% — 1,499 0 0
1973 1–3 25.0% — 1,517 0 1 1979 3–5 37.5% — 1,546 0 0
1974 27–18 60.0% — 1,730 0 3 1980 16–12 57.1% — 1,737 0 0
1975 18–17 51.4% — 1,793 0 3 1981 30–22 57.7% — 1,873 0 1
1976 11–19 36.7% — 1,709 0 3 1982 18–21 46.2% — 1,792 0 1
1977 8–15 34.8% — 1,677 0 3 1983 12–20 37.5% — 1,721 0 1
1978 13–24 35.1% — 1,659 0 3 1984 18–20 47.4% — 1,703 0 2
1979 18–19 48.6% — 1,695 0 5 1985 14–18 43.8% — 1,678 0 2
1980 22–27 44.9% — 1,756 0 5 1986 8–15 34.8% — 1,619 0 2
1981 20–21 48.8% — 1,803 0 6 1987 6–12 33.3% — 1,594 0 2
1982 12–17 41.4% — 1,704 0 6 1988 6–16 27.3% — 1,542 0 2
1983 18–22 45.0% — 1,692 0 6 1989 7–15 31.8% — 1,593 0 2
1984 11–18 37.9% #77 1,630 0 6 1990 8–11 42.1% — 1,612 0 2
1985 14–12 53.8% #81 1,714 0 6 1991 5–8 38.5% — 1,630 0 2
1986 18–17 51.4% #46 1,699 0 6 1992 1–8 11.1% — 1,560 0 2
1987 13–15 46.4% #61 1,645 0 6 1993 1–2 33.3% — 1,555 0 2
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 — — — — — — —