H2H data updated: 2026-09-14 00:00 UTC

Rossana De Los Ríos vs Lilia Osterloh H2H: 1-0

Rossana De Los Ríos holds a 1–0 lead over Lilia Osterloh in their WTA head-to-head. Across 1 main-draw meeting, Rossana De Los Ríos leads 1–0 on clay. Most recently, Rossana De Los Ríos won the 2008 Fes round of 32 6-4 6-4.

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Rossana De Los Ríos
PAR Age 50 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main-draw meetings
Lilia Osterloh
USA Age 48 Right-Handed 170 cm / 5'7"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Rossana De Los Ríos #91 6-4 6-4 Lilia Osterloh #92 Match data May 1, 2008* R32 Fes Tier IV → modern equivalent WTA 250 Clay

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
Rossana De Los Ríos #1,178 #51 788 1,622 64 120 34.8% 0 0 0 0 0 0
Lilia Osterloh #1,223 #41 738 1,696 83 138 37.6% 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 Rossana De Los Ríos Lilia Osterloh
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1991 0–1 0.0% #268 1,488 0 0 — — — — — — —
17 1993 5–8 38.5% #118 1,538 0 0 — — — — — — —
18 1994 0–3 0.0% #462 1,504 0 0 1996 1–1 50.0% #195 1,518 0 0
19 — — — — — — — 1997 2–2 50.0% #170 1,550 0 0
20 — — — — — — — 1998 0–5 0.0% #120 1,501 0 0
21 — — — — — — — 1999 9–13 40.9% #79 1,545 0 0
22 — — — — — — — 2000 15–19 44.1% #43 1,596 0 0
23 1999 0–1 0.0% #270 1,488 0 0 2001 23–25 47.9% #53 1,658 0 0
24 2000 5–5 50.0% #76 1,523 0 0 2002 7–18 28.0% #156 1,535 0 0
25 2001 19–24 44.2% #54 1,601 0 0 2003 0–2 0.0% #180 1,508 0 0
26 2002 14–23 37.8% #88 1,553 0 0 2004 4–5 44.4% #119 1,561 0 0
27 2003 3–15 16.7% #149 1,449 0 0 2005 2–9 18.2% #144 1,488 0 0
28 2004 1–2 33.3% #200 1,454 0 0 2006 6–8 42.9% #118 1,509 0 0
29 — — — — — — — 2007 7–12 36.8% #91 1,544 0 0
30 2006 0–1 0.0% #205 1,448 0 0 2008 3–10 23.1% #230 1,486 0 0
31 2007 0–3 0.0% #125 1,425 0 0 2009 3–3 50.0% #136 1,510 0 0
32 2008 7–14 33.3% #95 1,437 0 0 2010 1–6 14.3% #237 1,467 0 0
33 2009 6–9 40.0% #98 1,501 0 0 — — — — — — —
34 2010 4–11 26.7% #178 1,480 0 0 — — — — — — —

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 Rossana De Los Ríos Lilia Osterloh
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 1991 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
17 1993 3 5 8 37.5% 1 2 3 33.3% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
18 1994 0 3 3 0.0% — — — — — — — — — — — — 1996 1 1 2 50.0% — — — — — — — — — — — —
19 — — — — — — — — — — — — — — — — — 1997 2 1 3 66.7% — — — — — — — — 0 1 1 0.0%
20 — — — — — — — — — — — — — — — — — 1998 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
21 — — — — — — — — — — — — — — — — — 1999 6 8 14 42.9% 2 3 5 40.0% 1 2 3 33.3% — — — —
22 — — — — — — — — — — — — — — — — — 2000 6 9 15 40.0% 2 5 7 28.6% 5 2 7 71.4% 2 3 5 40.0%
23 1999 — — — — 0 1 1 0.0% — — — — — — — — 2001 14 13 27 51.9% 4 6 10 40.0% 2 3 5 40.0% 3 3 6 50.0%
24 2000 2 3 5 40.0% 3 1 4 75.0% 0 1 1 0.0% — — — — 2002 6 8 14 42.9% 0 7 7 0.0% 1 2 3 33.3% 0 1 1 0.0%
25 2001 10 13 23 43.5% 9 10 19 47.4% 0 1 1 0.0% — — — — 2003 — — — — — — — — 0 2 2 0.0% — — — —
26 2002 7 10 17 41.2% 5 9 14 35.7% 1 2 3 33.3% 1 2 3 33.3% 2004 4 5 9 44.4% — — — — — — — — — — — —
27 2003 1 5 6 16.7% 2 9 11 18.2% 0 1 1 0.0% — — — — 2005 0 3 3 0.0% 2 4 6 33.3% 0 1 1 0.0% 0 1 1 0.0%
28 2004 1 2 3 33.3% — — — — — — — — — — — — 2006 6 6 12 50.0% — — — — 0 2 2 0.0% — — — —
29 — — — — — — — — — — — — — — — — — 2007 5 9 14 35.7% 1 1 2 50.0% 1 1 2 50.0% 0 1 1 0.0%
30 2006 0 1 1 0.0% — — — — — — — — — — — — 2008 3 5 8 37.5% 0 5 5 0.0% — — — — — — — —
31 2007 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — 2009 2 2 4 50.0% — — — — 1 1 2 50.0% — — — —
32 2008 2 3 5 40.0% 5 10 15 33.3% 0 1 1 0.0% — — — — 2010 1 3 4 25.0% 0 2 2 0.0% 0 1 1 0.0% — — — —
33 2009 3 4 7 42.9% 2 4 6 33.3% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
34 2010 1 3 4 25.0% 3 7 10 30.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 30 53 83 36.1% 30 56 86 34.9% 2 8 10 20.0% 2 3 5 40.0% — 56 76 132 42.4% 11 34 45 24.4% 11 18 29 37.9% 5 10 15 33.3%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 46/73 of Rossana De Los Ríos's and 52/70 of Lilia Osterloh's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Rossana De Los Ríos Lilia Osterloh
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
27 2003 2/18 0.0 3.0 64.5% 39.9% 37.3% 44.4% 0.0% 38.7% 24.6% 2005 3/11 0.3 4.3 60.5% 46.3% 46.2% 38.9% 66.7% 46.9% 37.3%
28 — —/— — — — — — — — — — 2006 7/14 0.9 3.6 66.1% 56.0% 39.1% 42.7% 47.9% 49.6% 46.1%
29 — —/— — — — — — — — — — 2007 17/19 1.8 3.6 60.1% 54.8% 45.0% 46.6% 44.5% 50.6% 43.6%
30 2006 1/1 2.0 1.0 70.1% 61.7% 25.0% 61.5% 66.7% 50.7% 41.4% 2008 12/13 1.3 4.6 58.3% 60.2% 37.4% 55.9% 42.2% 50.7% 42.9%
31 2007 1/3 0.0 1.0 79.0% 53.1% 35.3% 30.0% 62.5% 49.4% 41.0% 2009 6/6 2.2 2.7 62.8% 60.1% 48.3% 55.1% 59.7% 56.1% 39.6%
32 2008 15/21 0.3 3.5 65.7% 52.5% 39.4% 54.9% 40.9% 48.3% 41.3% 2010 7/7 2.9 3.0 61.3% 57.0% 39.1% 47.3% 54.5% 50.0% 37.0%
33 2009 14/15 0.3 3.7 63.5% 54.2% 40.3% 51.9% 41.5% 48.5% 38.3% — —/— — — — — — — — — —
34 2010 13/15 0.4 2.5 73.2% 54.7% 37.1% 50.7% 44.5% 49.7% 42.0% — —/— — — — — — — — — —
Career — 46/184 0.3 3.2 67.5% 53.3% 38.5% 51.9% 41.4% 48.4% 39.8% — 52/221 1.7 3.7 61.0% 56.6% 42.1% 48.9% 48.8% 50.8% 42.1%

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 Rossana De Los Ríos Lilia Osterloh
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 1991 1489 100.1 — — — — — — — 0.0% -3.00 — — — -0.01 — — — — — — — — — — — — — — — —
17 1993 1539 109.1 — — — — +11 +17 — 33.3% -1.78 2–1 (67%) 2–1 (67%) 102.4 -0.33 — — — — — — — — — — — — — — — —
18 1994 1504 96.2 — — — — +9 — — 0.0% -3.67 — — — -0.04 1996 1519 110.9 — — — — — — — 50.0% +0.50 — — — -0.06
19 — — — — — — — — — — — — — — — — 1997 1551 112.0 — — — — +33 — — 28.6% -2.00 1–0 — — +0.04
20 — — — — — — — — — — — — — — — — 1998 1502 105.3 — — — — +38 — — 23.1% -1.85 0–3 (0%) 0–1 — +0.07
21 — — — — — — — — — — — — — — — — 1999 1546 126.1 — — — — +29 +17 +5 40.0% -0.98 4–2 (67%) — — -0.06
22 — — — — — — — — — — — — — — — — 2000 1596 120.7 — — — — -34 -49 +61 42.5% -0.41 8–6 (57%) 3–8 (27%) 101.9 -0.05
23 1999 1489 99.0 — — — — — — — 33.3% +0.33 0–1 — — +0.09 2001 1658 133.0 — — — — -4 -132 +27 49.5% -0.09 5–8 (38%) 7–4 (64%) 100.9 -0.27
24 2000 1523 109.6 — — — — -29 +54 — 45.0% -0.35 1–1 1–2 (33%) — +0.82 2002 1535 110.8 — — — — +102 -112 +96 29.3% -1.59 5–3 (63%) 2–3 (40%) 102.7 -1.31
25 2001 1601 120.5 — — — — -70 +48 — 43.3% -0.41 7–4 (64%) 5–0 (100%) 110.0 +0.59 2003 1509 94.9 — — — — — — — 0.0% -2.75 — — — +0.04
26 2002 1553 110.4 — — — — -15 +16 -14 42.2% -0.71 2–7 (22%) 7–4 (64%) 96.8 +0.94 2004 1561 130.0 — — — — +95 — — 47.6% -0.38 1–2 (33%) 1–1 — -0.58
27 2003 1450 99.1 -2.66 -3.40 0.402 31.8% +43 +9 — 21.1% -2.08 0–4 (0%) 0–3 (0%) 91.9 -0.26 2005 1488 99.5 -2.44 -2.36 0.703 41.7% +105 -60 — 28.0% -2.08 0–3 (0%) 0–1 — -0.27
28 2004 1454 110.2 — — — — +37 — — 42.9% -0.29 0–1 0–2 — +0.33 2006 1510 110.3 -2.68 -0.13 0.914 47.9% +82 — — 46.9% -0.19 3–3 (50%) 1–4 (20%) 98.8 +0.94
29 — — — — — — — — — — — — — — — — 2007 1545 117.7 -3.39 +0.08 0.882 46.8% +27 — — 41.9% -0.91 1–4 (20%) 1–0 — -0.55
30 2006 1449 103.5 +0.91 +3.64 0.841 46.0% — — — 0.0% -2.00 — 0–1 — -0.16 2008 1486 100.1 -3.07 -1.01 0.871 46.7% +64 -97 — 24.0% -1.44 1–0 1–3 (25%) — +0.06
31 2007 1426 98.2 -0.36 -2.28 0.811 45.3% — — — 14.3% -2.57 0–1 — — -0.20 2009 1511 100.3 -0.43 -1.46 0.901 48.5% +43 — — 40.0% -0.40 3–0 (100%) 0–1 — +0.33
32 2008 1437 92.1 -4.65 -1.78 0.798 44.9% +40 -8 — 33.3% -1.78 2–3 (40%) 2–1 (67%) 100.2 +0.31 2010 1468 100.5 -2.57 -3.96 0.740 43.5% +60 — — 18.8% -2.19 1–1 0–1 — -0.29
33 2009 1502 103.8 -3.71 -3.39 0.743 43.6% -10 -46 — 37.1% -1.34 4–1 (80%) 2–1 (67%) — -0.17 — — — — — — — — — — — — — — — —
34 2010 1480 107.1 -3.00 -0.28 0.835 46.1% +10 -51 — 31.3% -1.63 0–2 2–1 (67%) — -0.27 — — — — — — — — — — — — — — — —
Career — 1623 110.4 -3.60 -1.81 0.772 44.3% -16 +7 -14 36.1% -1.15 18–26 (41%) 21–16 (57%) 101.5 +0.90 — 1696 123.9 -2.71 -1.06 0.855 46.4% +34 -80 +48 39.2% -0.82 33–35 (49%) 16–27 (37%) 99.8 -0.89

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.