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

Mona Guerrant vs Ilana Kloss H2H: 0-1 (incl. walkovers)

Mona Guerrant vs Ilana Kloss: 0–0 excluding walkovers; 0–1 including 1 walkover. Across 1 main-draw results including walkovers, Ilana Kloss leads 1–0 on carpet. Most recently, Ilana Kloss won the 1974 Philadelphia round of 32 W/O.

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Mona Guerrant
USA Age 77 Right-Handed
H2H including walkovers
0 – 1
1 main-draw results
Ilana Kloss
RSA Age 70 Left-Handed 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ilana Kloss (w/o) Mona Guerrant Match data Apr 25, 1974* R32 Philadelphia WTA 250 Carpet

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
Mona Guerrant — — — 1,941 122 116 51.3% 0 0 0 0 3 3
Ilana Kloss — — — 1,890 135 144 48.4% 0 0 0 0 8 8

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 Mona Guerrant Ilana Kloss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 — — — — — — — 1970 0–1 0.0% — 1,491 0 0
15 — — — — — — — 1971 5–4 55.6% — 1,561 0 1
16 — — — — — — — 1972 13–12 52.0% — 1,592 0 3
17 — — — — — — — 1973 38–18 67.9% — 1,872 0 8
18 — — — — — — — 1974 19–16 54.3% — 1,801 0 8
19 — — — — — — — 1975 9–20 31.0% — 1,688 0 8
20 1969 1–1 50.0% — 1,500 0 0 1976 18–15 54.5% — 1,784 0 8
21 1970 1–2 33.3% — 1,504 0 0 1977 4–13 23.5% — 1,667 0 8
22 1971 3–8 27.3% — 1,517 0 0 1978 14–11 56.0% — 1,740 0 8
23 1972 28–22 56.0% — 1,733 0 1 1979 15–26 36.6% — 1,698 0 8
24 1973 17–19 47.2% — 1,780 0 2 1980 0–7 0.0% — 1,618 0 8
25 1974 12–14 46.2% — 1,779 0 2 — — — — — — —
26 1975 12–12 50.0% — 1,905 0 2 1982 0–1 0.0% — 1,599 0 8
27 1976 15–14 51.7% — 1,898 0 2 — — — — — — —
28 1977 14–9 60.9% — 1,890 0 2 — — — — — — —
29 1978 5–11 31.2% — 1,808 0 2 — — — — — — —
31 1980 14–4 77.8% — 1,812 0 3 — — — — — — —

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 Mona Guerrant Ilana Kloss
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 — — — — — — — — — — — — — — — — — 1970 0 1 1 0.0% — — — — — — — — — — — —
15 — — — — — — — — — — — — — — — — — 1971 5 4 9 55.6% — — — — — — — — — — — —
16 — — — — — — — — — — — — — — — — — 1972 8 7 15 53.3% 0 1 1 0.0% 3 4 7 42.9% — — — —
17 — — — — — — — — — — — — — — — — — 1973 15 6 21 71.4% 14 7 21 66.7% 9 5 14 64.3% — — — —
18 — — — — — — — — — — — — — — — — — 1974 8 5 13 61.5% 3 4 7 42.9% 2 3 5 40.0% 2 2 4 50.0%
19 — — — — — — — — — — — — — — — — — 1975 1 9 10 10.0% 1 2 3 33.3% 1 2 3 33.3% 2 6 8 25.0%
20 1969 — — — — 1 1 2 50.0% — — — — — — — — 1976 3 2 5 60.0% 9 8 17 52.9% 5 4 9 55.6% 1 1 2 50.0%
21 1970 — — — — 1 2 3 33.3% — — — — — — — — 1977 1 1 2 50.0% 1 6 7 14.3% 2 2 4 50.0% 0 4 4 0.0%
22 1971 0 2 2 0.0% 2 2 4 50.0% 1 4 5 20.0% — — — — 1978 4 4 8 50.0% — — — — 9 4 13 69.2% 1 3 4 25.0%
23 1972 4 3 7 57.1% 9 8 17 52.9% 14 9 23 60.9% 1 1 2 50.0% 1979 2 7 9 22.2% 1 4 5 20.0% 4 5 9 44.4% 8 10 18 44.4%
24 1973 3 4 7 42.9% 7 7 14 50.0% 2 4 6 33.3% 5 4 9 55.6% 1980 0 1 1 0.0% 0 2 2 0.0% 0 2 2 0.0% 0 2 2 0.0%
25 1974 1 2 3 33.3% 0 3 3 0.0% 5 5 10 50.0% 6 4 10 60.0% — — — — — — — — — — — — — — — — —
26 1975 4 4 8 50.0% 3 2 5 60.0% 1 1 2 50.0% 4 5 9 44.4% 1982 — — — — — — — — 0 1 1 0.0% — — — —
27 1976 2 3 5 40.0% 0 1 1 0.0% 5 2 7 71.4% 8 8 16 50.0% — — — — — — — — — — — — — — — — —
28 1977 2 2 4 50.0% 6 3 9 66.7% 4 2 6 66.7% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
29 1978 — — — — 2 2 4 50.0% 0 2 2 0.0% 3 7 10 30.0% — — — — — — — — — — — — — — — — —
31 1980 0 1 1 0.0% — — — — — — — — 2 1 3 66.7% — — — — — — — — — — — — — — — — —
Career — 16 21 37 43.2% 31 31 62 50.0% 32 29 61 52.5% 31 32 63 49.2% — 47 47 94 50.0% 29 34 63 46.0% 35 32 67 52.2% 14 28 42 33.3%

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 Mona Guerrant Ilana Kloss
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 — — — — — — — — — — — — — — — — 1970 1491 97.3 — — — — — — — 0.0% -4.50 — — — +0.01
15 — — — — — — — — — — — — — — — — 1971 1562 111.3 — — — — +63 — — 57.9% +0.26 0–1 0–1 — +1.35
16 — — — — — — — — — — — — — — — — 1972 1593 123.4 — — — — +46 — -33 54.5% +0.64 1–4 (20%) 0–2 — +3.97
17 — — — — — — — — — — — — — — — — 1973 1872 144.6 — — — — -17 -132 -190 66.4% +1.36 7–9 (44%) 2–1 (67%) 101.0 +4.89
18 — — — — — — — — — — — — — — — — 1974 1802 136.3 — — — — +25 -83 -116 52.2% +0.16 1–4 (20%) 2–1 (67%) 97.5 -2.52
19 — — — — — — — — — — — — — — — — 1975 1688 127.3 — — — — -12 -4 -4 36.4% -0.99 2–8 (20%) 3–5 (38%) 91.8 -1.41
20 1969 1500 92.5 — — — — — — — 40.0% -2.40 1–0 — — +0.28 1976 1784 138.9 — — — — -88 -29 -55 50.6% +0.13 8–3 (73%) 3–2 (60%) 108.4 -3.02
21 1970 1504 106.4 — — — — — +14 — 42.9% -1.00 0–1 — — +0.10 1977 1668 111.1 — — — — -42 +4 +35 28.2% -1.69 2–3 (40%) 2–1 (67%) 99.1 -0.17
22 1971 1517 118.6 — — — — — +38 +14 35.7% -0.75 2–4 (33%) 0–3 (0%) 95.8 0.00 1978 1740 124.2 — — — — -82 — +35 55.9% +0.24 4–5 (44%) 5–6 (45%) 100.3 +1.24
23 1972 1734 136.4 — — — — -121 -79 -58 56.3% +0.56 8–11 (42%) 5–0 (100%) 103.8 +0.32 1979 1698 126.9 — — — — -30 -52 +32 36.8% -1.15 10–5 (67%) 7–2 (78%) 110.6 -0.20
24 1973 1781 144.7 — — — — -54 -77 -115 48.8% -0.15 3–5 (38%) 2–2 (50%) 99.8 -3.77 1980 1619 104.5 — — — — -41 — — 6.7% -3.20 0–1 0–2 — -0.75
25 1974 1779 137.0 — — — — -26 -97 -75 50.9% +0.11 1–4 (20%) 3–4 (43%) 97.1 -1.56 — — — — — — — — — — — — — — — —
26 1975 1906 154.1 — — — — -52 -116 — 48.2% -0.13 5–3 (63%) 2–4 (33%) 103.0 -3.85 1982 1599 97.0 — — — — — — — 33.3% -2.67 0–1 — — +0.16
27 1976 1898 149.2 — — — — -30 — -110 55.9% +0.57 2–8 (20%) 2–5 (29%) 93.6 -2.51 — — — — — — — — — — — — — — — —
28 1977 1890 136.0 — — — — -64 -47 -93 57.7% +0.69 4–4 (50%) 3–1 (75%) 100.8 -0.54 — — — — — — — — — — — — — — — —
29 1978 1809 135.5 — — — — -44 -17 — 35.9% -0.87 3–4 (43%) 0–3 (0%) — -2.29 — — — — — — — — — — — — — — — —
31 1980 1812 138.2 — — — — -108 — — 73.8% +2.26 4–2 (67%) 1–0 — +0.36 — — — — — — — — — — — — — — — —
Career — 1942 149.0 — — — — -53 -61 -71 52.5% +0.27 33–46 (42%) 18–22 (45%) 98.6 -5.68 — 1890 136.4 — — — — -12 -68 -48 48.8% -0.09 35–44 (44%) 24–23 (51%) 101.1 +1.28

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.