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

Sloane Stephens vs Karin Knapp H2H: 1-0

Sloane Stephens holds a 1–0 lead over Karin Knapp in their WTA head-to-head. Across 1 main-draw meeting, Sloane Stephens leads 1–0 on clay. Most recently, Sloane Stephens won the 2013 Roland Garros round of 128 6-2 7-5.

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Sloane Stephens
United States Age 33 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main-draw meetings
Karin Knapp
Italy Age 39 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sloane Stephens #17 6-2 7-5 Karin Knapp #111 Match data May 29, 2013* R128 Roland Garros Grand Slam 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
Sloane Stephens #209 #3 5,727 1,952 303 249 54.9% 1 1 0 1 5 8
Karin Knapp #971 #33 1,420 1,710 103 118 46.6% 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.

Age Sloane Stephens Karin Knapp
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2010 2–3 40.0% #204 1,519 0 0 — — — — — — —
18 2011 7–9 43.8% #96 1,580 0 0 — — — — — — —
19 2012 21–17 55.3% #38 1,709 0 0 2006 3–4 42.9% #122 1,513 0 0
20 2013 40–22 64.5% #12 1,827 0 0 2007 14–14 50.0% #50 1,587 0 0
21 2014 20–19 51.3% #36 1,732 0 0 2008 11–14 44.0% #80 1,603 0 0
22 2015 34–20 63.0% #30 1,787 0 1 2009 3–6 33.3% #205 1,555 0 0
23 2016 21–10 67.7% #35 1,755 0 4 — — — — — — —
24 2017 15–8 65.2% #13 1,863 1 5 2011 0–3 0.0% #164 1,530 0 0
25 2018 34–19 64.2% #6 1,920 1 6 2012 7–7 50.0% #120 1,561 0 0
26 2019 22–19 53.7% #25 1,786 1 6 2013 20–15 57.1% #41 1,680 0 0
27 2020 4–11 26.7% #39 1,641 1 6 2014 18–24 42.9% #54 1,644 0 1
28 2021 18–17 51.4% #65 1,759 1 6 2015 22–20 52.4% #51 1,704 0 2
29 2022 18–17 51.4% #37 1,785 1 7 2016 5–10 33.3% #147 1,637 0 2
30 2023 21–20 51.2% #47 1,789 1 7 2017 0–1 0.0% #966 1,617 0 2
31 2024 19–21 47.5% #74 1,688 1 8 — — — — — — —
32 2025 0–5 0.0% #479 1,603 1 8 — — — — — — —
33 2026 7–12 36.8% #209 1,699 1 8 — — — — — — —

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 Sloane Stephens Karin Knapp
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 %
17 2010 1 1 2 50.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — —
18 2011 6 6 12 50.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 2012 12 10 22 54.5% 7 6 13 53.8% 2 1 3 66.7% — — — — 2006 1 2 3 33.3% 2 2 4 50.0% — — — — — — — —
20 2013 29 16 45 64.4% 7 5 12 58.3% 4 1 5 80.0% — — — — 2007 3 5 8 37.5% 11 7 18 61.1% 0 2 2 0.0% — — — —
21 2014 11 10 21 52.4% 6 6 12 50.0% 3 3 6 50.0% — — — — 2008 7 8 15 46.7% 4 5 9 44.4% — — — — 0 1 1 0.0%
22 2015 20 13 33 60.6% 8 5 13 61.5% 6 2 8 75.0% — — — — 2009 3 4 7 42.9% 0 2 2 0.0% — — — — — — — —
23 2016 10 6 16 62.5% 9 3 12 75.0% 2 1 3 66.7% — — — — — — — — — — — — — — — — — — — — —
24 2017 15 7 22 68.2% — — — — 0 1 1 0.0% — — — — 2011 0 2 2 0.0% 0 1 1 0.0% — — — — — — — —
25 2018 24 13 37 64.9% 10 5 15 66.7% 0 1 1 0.0% — — — — 2012 1 2 3 33.3% 6 4 10 60.0% 0 1 1 0.0% — — — —
26 2019 10 13 23 43.5% 10 4 14 71.4% 2 2 4 50.0% — — — — 2013 6 6 12 50.0% 11 8 19 57.9% 3 1 4 75.0% — — — —
27 2020 3 8 11 27.3% 1 3 4 25.0% — — — — — — — — 2014 13 15 28 46.4% 4 7 11 36.4% 0 1 1 0.0% 1 1 2 50.0%
28 2021 6 11 17 35.3% 10 5 15 66.7% 2 1 3 66.7% — — — — 2015 10 13 23 43.5% 12 4 16 75.0% 0 3 3 0.0% — — — —
29 2022 13 9 22 59.1% 5 6 11 45.5% 0 2 2 0.0% — — — — 2016 0 4 4 0.0% 5 5 10 50.0% 0 1 1 0.0% — — — —
30 2023 12 14 26 46.2% 8 5 13 61.5% 1 1 2 50.0% — — — — 2017 0 1 1 0.0% — — — — — — — — — — — —
31 2024 8 13 21 38.1% 9 5 14 64.3% 2 3 5 40.0% — — — — — — — — — — — — — — — — — — — — —
32 2025 0 5 5 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
33 2026 6 8 14 42.9% 1 4 5 20.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 186 163 349 53.3% 93 67 160 58.1% 24 19 43 55.8% — — — — — 44 62 106 41.5% 55 45 100 55.0% 3 9 12 25.0% 1 2 3 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 520/552 of Sloane Stephens's and 191/221 of Karin Knapp'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 Sloane Stephens Karin Knapp
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%
17 2010 5/5 0.6 3.6 64.1% 58.7% 39.2% 42.2% 62.2% 52.1% 42.9% — —/— — — — — — — — — —
18 2011 16/16 1.4 3.0 59.3% 59.3% 47.2% 41.8% 52.7% 54.1% 43.8% — —/— — — — — — — — — —
19 2012 36/38 1.7 3.6 62.4% 61.6% 46.4% 48.6% 43.2% 55.6% 45.1% 2006 2/7 2.5 4.5 56.9% 69.2% 46.9% 37.5% 67.9% 60.1% 43.1%
20 2013 58/62 2.1 2.7 64.9% 63.2% 45.5% 49.3% 49.5% 56.8% 44.8% 2007 19/28 3.0 6.3 54.6% 65.6% 42.6% 50.6% 36.5% 55.0% 44.6%
21 2014 37/39 1.7 2.4 68.3% 62.0% 46.2% 53.8% 38.4% 57.0% 41.9% 2008 21/25 2.1 5.0 60.9% 60.3% 40.5% 48.7% 51.3% 52.6% 43.1%
22 2015 44/54 2.4 2.3 61.6% 65.6% 54.6% 58.0% 54.1% 61.5% 42.6% 2009 8/9 0.8 5.3 50.2% 59.7% 41.0% 49.3% 44.6% 49.7% 43.9%
23 2016 29/31 2.0 1.8 65.8% 64.5% 49.5% 52.7% 47.8% 59.4% 44.8% — —/— — — — — — — — — —
24 2017 22/23 1.1 1.5 67.7% 61.0% 47.2% 59.8% 54.5% 56.6% 41.8% 2011 3/3 1.0 10.7 59.1% 60.2% 39.8% 51.3% 49.7% 51.6% 41.5%
25 2018 47/53 0.8 1.5 69.8% 62.1% 49.9% 51.8% 51.5% 58.5% 47.2% 2012 14/14 1.6 6.0 59.3% 60.0% 40.5% 49.9% 43.5% 52.0% 44.1%
26 2019 39/41 1.0 1.7 69.4% 59.9% 47.7% 47.6% 43.1% 56.2% 44.2% 2013 29/35 2.9 5.0 56.6% 67.7% 43.8% 54.9% 50.9% 57.4% 46.7%
27 2020 15/15 2.2 2.0 69.5% 61.1% 47.1% 50.2% 44.4% 56.6% 40.0% 2014 39/42 3.6 4.7 57.7% 65.5% 43.2% 50.6% 51.2% 55.9% 41.9%
28 2021 35/35 1.5 2.1 69.1% 59.7% 46.9% 57.7% 45.3% 55.7% 42.8% 2015 41/42 2.5 4.2 64.1% 61.4% 48.0% 52.5% 49.5% 56.7% 43.8%
29 2022 35/35 1.2 2.1 71.3% 60.8% 45.5% 51.6% 51.8% 56.4% 44.7% 2016 14/15 2.7 4.9 56.1% 61.7% 41.1% 46.8% 45.0% 52.8% 40.7%
30 2023 40/41 1.1 2.2 69.4% 60.6% 45.7% 51.1% 51.2% 56.1% 43.8% 2017 1/1 3.0 5.0 48.1% 60.0% 29.6% 58.3% 50.0% 44.2% 44.7%
31 2024 40/40 0.8 1.6 72.9% 58.8% 49.8% 46.9% 39.1% 55.9% 42.6% — —/— — — — — — — — — —
32 2025 3/5 1.0 2.7 64.5% 54.1% 31.3% 50.1% 42.1% 46.2% 40.7% — —/— — — — — — — — — —
33 2026 19/19 0.9 2.0 66.5% 57.5% 47.5% 54.6% 45.5% 54.2% 39.3% — —/— — — — — — — — — —
Career — 520/552 1.5 2.2 67.3% 61.4% 47.7% 51.6% 47.6% 56.9% 43.7% — 191/221 2.6 5.1 58.6% 63.4% 43.5% 51.0% 48.2% 55.0% 43.6%

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 Sloane Stephens Karin Knapp
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
17 2010 1519 108.2 -1.34 +0.26 0.895 47.8% — +19 — 40.0% -1.10 — 2–0 — -0.36 — — — — — — — — — — — — — — — —
18 2011 1581 116.3 -0.64 -0.35 0.955 48.8% +19 -78 — 40.6% -0.69 1–1 2–0 — +0.03 — — — — — — — — — — — — — — — —
19 2012 1709 130.0 +0.14 +1.30 1.016 50.3% -38 -86 -53 52.7% +0.20 9–8 (53%) 5–5 (50%) 102.2 +0.59 2006 1513 108.6 -0.12 -2.10 1.081 52.1% -5 +47 — 47.1% +0.47 1–2 (33%) 2–4 (33%) 98.3 +0.25
20 2013 1827 148.1 +1.68 +1.63 1.037 50.8% -16 -126 -97 58.2% +0.39 17–7 (71%) 8–6 (57%) 109.7 +0.29 2007 1587 121.4 -0.55 -0.12 0.990 49.7% -69 +90 — 49.3% 0.00 6–7 (46%) 6–3 (67%) 101.3 +0.69
21 2014 1733 132.5 +1.10 -0.90 0.974 49.4% +23 -27 -2 51.7% -0.02 5–6 (45%) 5–3 (63%) 100.3 +0.75 2008 1603 120.0 -1.76 -0.63 0.909 48.0% -25 +27 — 46.6% -0.74 3–5 (38%) 5–3 (63%) 99.5 +1.04
22 2015 1787 143.0 +3.00 +2.02 1.106 52.3% -23 -18 -9 60.9% +0.54 5–8 (38%) 10–1 (91%) 104.6 -2.66 2009 1556 96.3 -3.79 -1.88 0.874 46.7% +5 — — 25.0% -1.75 — 1–1 — +1.05
23 2016 1756 122.0 +2.14 +0.81 1.106 52.0% -20 +53 +23 60.9% +0.56 7–2 (78%) 8–2 (80%) 107.2 +0.83 — — — — — — — — — — — — — — — —
24 2017 1864 153.6 +0.98 +1.17 0.964 49.2% +11 — — 57.7% +0.35 8–0 (100%) 4–2 (67%) 111.8 -1.70 2011 1531 107.5 +1.01 -0.38 0.858 47.0% — — — 33.3% -1.11 0–3 (0%) 2–1 (67%) — -0.47
25 2018 1921 157.9 +2.48 +3.98 1.139 52.7% +6 -17 — 61.0% +0.94 10–9 (53%) 3–7 (30%) 96.1 -0.56 2012 1562 108.4 -2.46 -0.27 0.918 48.2% -36 +93 — 45.7% -0.69 5–2 (71%) 1–1 — +0.13
26 2019 1786 136.3 -0.49 +1.33 1.009 50.2% -24 +182 -21 52.6% -0.19 7–6 (54%) 11–2 (85%) 104.6 +1.76 2013 1681 127.7 +1.14 +1.48 1.097 52.0% -86 -9 -89 57.3% +0.40 5–7 (42%) 5–1 (83%) 103.3 +0.66
27 2020 1641 114.3 +0.15 -1.60 0.922 48.1% +16 +243 — 37.8% -0.68 1–6 (14%) 1–1 — +1.57 2014 1645 120.9 -0.61 -1.24 0.951 49.0% -13 -18 — 45.7% -0.48 4–8 (33%) 6–5 (55%) 97.7 +0.92
28 2021 1760 134.1 -0.59 +0.37 0.967 49.3% -115 +157 +83 52.4% -0.19 6–8 (43%) 3–5 (38%) 97.2 -0.75 2015 1704 130.8 -0.82 +1.99 1.010 50.4% -81 +81 -160 53.8% +0.27 6–5 (55%) 7–7 (50%) 102.7 -0.73
29 2022 1785 140.6 -0.05 +2.25 1.024 50.4% +9 +46 — 50.6% +0.06 7–8 (47%) 2–2 (50%) 98.7 +0.24 2016 1637 105.2 -1.99 -0.46 0.862 46.9% -62 +121 — 36.4% -1.42 1–4 (20%) 2–0 — -0.47
30 2023 1790 135.6 -0.42 +1.25 0.998 49.9% -56 +122 — 50.5% +0.02 6–7 (46%) 3–6 (33%) 94.4 -0.37 2017 1618 — -0.56 -4.07 0.802 44.4% — — — — — — — — +0.14
31 2024 1689 137.0 -0.42 -0.12 0.965 49.0% -19 +171 +35 47.3% -0.11 6–5 (55%) 1–2 (33%) — -1.59 — — — — — — — — — — — — — — — —
32 2025 1604 109.9 -1.23 +0.23 0.757 43.6% -34 — — 16.7% -2.34 0–2 — — -0.11 — — — — — — — — — — — — — — — —
33 2026 1699 132.4 -1.61 -2.12 0.859 47.0% -20 +56 — 36.6% -1.20 2–1 (67%) 1–1 — -0.66 — — — — — — — — — — — — — — — —
Career — 1952 145.6 +0.68 +1.07 1.013 50.2% -17 +47 -9 53.0% +0.11 97–84 (54%) 69–45 (61%) 107.5 -0.49 — 1711 124.9 -0.85 +0.14 0.969 49.4% -43 +53 -119 48.2% -0.26 31–43 (42%) 37–26 (59%) 103.3 +1.45

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.