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

Alison Riske-Amritraj vs Klara Koukalova H2H: 0-1

Klara Koukalova holds a 1–0 lead over Alison Riske-Amritraj in their WTA head-to-head. Across 1 main-draw meeting, Klara Koukalova leads 1–0 on hard courts. Most recently, Klara Koukalova won the 2014 Hobart International quarterfinal 6-4 7-5.

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Alison Riske-Amritraj
United States Age 36 Right-Handed 175 cm / 5'9"
H2H
0 – 1
1 main-draw meetings
Klara Koukalova
CZE Age 44 Right-Handed 166 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Klara Koukalova #37 6-4 7-5 Alison Riske-Amritraj #55 Match data Jan 11, 2014* QF Hobart International International → modern equivalent WTA 250 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
Alison Riske-Amritraj #1,157 #18 2,360 1,860 189 202 48.3% 0 0 0 0 3 3
Klara Koukalova #566 #20 1,860 1,803 275 288 48.8% 0 0 0 0 3 3

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 Alison Riske-Amritraj Klara Koukalova
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 2010 4–4 50.0% #115 1,554 0 0 2001 5–4 55.6% #139 1,519 0 0
20 2011 3–8 27.3% #136 1,528 0 0 2002 4–5 44.4% #117 1,527 0 0
21 2012 0–4 0.0% #180 1,487 0 0 2003 14–19 42.4% #63 1,537 0 0
22 2013 11–6 64.7% #57 1,641 0 0 2004 26–23 53.1% #46 1,611 0 0
23 2014 24–22 52.2% #43 1,712 0 1 2005 32–19 62.7% #35 1,764 0 2
24 2015 15–24 38.5% #97 1,602 0 1 2006 10–22 31.2% #117 1,546 0 2
25 2016 23–19 54.8% #39 1,740 0 1 2007 12–12 50.0% #63 1,578 0 2
26 2017 19–24 44.2% #70 1,641 0 1 2008 21–22 48.8% #72 1,574 0 2
27 2018 17–16 51.5% #62 1,626 0 1 2009 8–17 32.0% #90 1,533 0 2
28 2019 26–22 54.2% #18 1,805 0 2 2010 20–20 50.0% #41 1,656 0 2
29 2020 6–8 42.9% #26 1,745 0 2 2011 29–25 53.7% #41 1,713 0 2
30 2021 16–16 50.0% #51 1,766 0 3 2012 24–22 52.2% #28 1,721 0 2
31 2022 25–21 54.3% #41 1,732 0 3 2013 27–25 51.9% #35 1,675 0 2
32 2023 0–8 0.0% #659 1,602 0 3 2014 29–27 51.8% #40 1,611 0 3
33 — — — — — — — 2015 14–22 38.9% #99 1,549 0 3
34 — — — — — — — 2016 0–4 0.0% #400 1,486 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 Alison Riske-Amritraj Klara Koukalova
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 %
19 2010 0 1 1 0.0% 0 1 1 0.0% 4 2 6 66.7% — — — — 2001 — — — — 5 3 8 62.5% — — — — 0 1 1 0.0%
20 2011 0 5 5 0.0% 0 1 1 0.0% 3 2 5 60.0% — — — — 2002 0 2 2 0.0% 4 3 7 57.1% — — — — — — — —
21 2012 0 3 3 0.0% — — — — 0 1 1 0.0% — — — — 2003 3 6 9 33.3% 11 11 22 50.0% 0 1 1 0.0% 0 1 1 0.0%
22 2013 5 4 9 55.6% — — — — 6 2 8 75.0% — — — — 2004 8 12 20 40.0% 13 9 22 59.1% 5 2 7 71.4% — — — —
23 2014 17 14 31 54.8% 3 5 8 37.5% 4 3 7 57.1% — — — — 2005 16 11 27 59.3% 11 6 17 64.7% 5 1 6 83.3% 0 1 1 0.0%
24 2015 9 15 24 37.5% 2 5 7 28.6% 4 4 8 50.0% — — — — 2006 4 11 15 26.7% 4 7 11 36.4% 1 3 4 25.0% 1 1 2 50.0%
25 2016 17 11 28 60.7% 2 6 8 25.0% 4 2 6 66.7% — — — — 2007 5 7 12 41.7% 7 5 12 58.3% — — — — — — — —
26 2017 9 14 23 39.1% 5 6 11 45.5% 5 4 9 55.6% — — — — 2008 6 9 15 40.0% 15 10 25 60.0% 0 2 2 0.0% 0 1 1 0.0%
27 2018 8 10 18 44.4% 4 3 7 57.1% 5 3 8 62.5% — — — — 2009 1 7 8 12.5% 7 9 16 43.8% 0 1 1 0.0% — — — —
28 2019 17 16 33 51.5% 0 4 4 0.0% 9 2 11 81.8% — — — — 2010 12 11 23 52.2% 5 8 13 38.5% 3 1 4 75.0% — — — —
29 2020 6 6 12 50.0% 0 2 2 0.0% — — — — — — — — 2011 16 15 31 51.6% 10 7 17 58.8% 2 2 4 50.0% 1 1 2 50.0%
30 2021 14 11 25 56.0% 0 2 2 0.0% 2 3 5 40.0% — — — — 2012 8 12 20 40.0% 8 6 14 57.1% 5 3 8 62.5% 3 1 4 75.0%
31 2022 17 14 31 54.8% 2 3 5 40.0% 6 4 10 60.0% — — — — 2013 17 16 33 51.5% 7 6 13 53.8% 2 2 4 50.0% 1 1 2 50.0%
32 2023 0 5 5 0.0% 0 1 1 0.0% 0 2 2 0.0% — — — — 2014 18 17 35 51.4% 4 6 10 40.0% 6 3 9 66.7% 1 1 2 50.0%
33 — — — — — — — — — — — — — — — — — 2015 5 14 19 26.3% 6 5 11 54.5% 3 3 6 50.0% — — — —
34 — — — — — — — — — — — — — — — — — 2016 0 4 4 0.0% — — — — — — — — — — — —
Career — 119 129 248 48.0% 18 39 57 31.6% 52 34 86 60.5% — — — — — 119 154 273 43.6% 117 101 218 53.7% 32 24 56 57.1% 7 9 16 43.8%

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 369/392 of Alison Riske-Amritraj's and 66/96 of Klara Koukalova'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 Alison Riske-Amritraj Klara Koukalova
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%
19 2010 8/8 2.6 3.9 71.0% 64.5% 45.1% 56.1% 47.4% 58.8% 36.7% — —/— — — — — — — — — —
20 2011 11/11 2.9 4.1 66.3% 58.6% 44.6% 49.0% 39.3% 53.7% 36.5% — —/— — — — — — — — — —
21 2012 4/4 1.0 3.5 67.5% 55.7% 43.0% 48.0% 49.7% 51.5% 39.7% — —/— — — — — — — — — —
22 2013 17/17 1.8 3.5 67.6% 66.5% 51.0% 58.2% 53.9% 61.5% 43.2% — —/— — — — — — — — — —
23 2014 38/46 2.6 4.8 64.2% 64.1% 42.9% 56.1% 48.7% 56.5% 43.5% — —/— — — — — — — — — —
24 2015 34/39 1.5 3.6 70.0% 59.7% 52.0% 48.2% 37.9% 57.4% 40.3% — —/— — — — — — — — — —
25 2016 40/43 1.5 4.0 66.6% 63.8% 46.0% 52.4% 43.0% 58.2% 45.0% — —/— — — — — — — — — —
26 2017 42/43 1.2 3.3 68.0% 62.0% 43.7% 51.2% 44.2% 56.0% 42.4% — —/— — — — — — — — — —
27 2018 32/33 2.0 4.2 66.1% 63.1% 48.5% 52.7% 45.7% 58.2% 45.3% — —/— — — — — — — — — —
28 2019 48/48 2.3 4.1 66.3% 62.9% 47.4% 52.0% 45.7% 57.7% 43.1% — —/— — — — — — — — — —
29 2020 14/14 2.6 6.2 64.4% 64.6% 45.0% 55.3% 55.6% 57.6% 44.1% — —/— — — — — — — — — —
30 2021 29/32 2.3 4.1 66.0% 62.3% 46.1% 52.8% 50.3% 56.8% 44.1% — —/— — — — — — — — — —
31 2022 44/46 2.1 2.7 66.8% 63.2% 49.8% 50.8% 44.1% 58.6% 42.7% — —/— — — — — — — — — —
32 2023 8/8 1.1 3.8 65.6% 57.1% 39.0% 41.9% 52.2% 50.8% 34.2% 2014 31/56 1.8 5.0 55.4% 61.0% 41.7% 47.6% 48.1% 51.9% 43.5%
33 — —/— — — — — — — — — — 2015 31/36 0.7 5.5 55.6% 60.9% 46.7% 43.3% 48.1% 54.4% 42.6%
34 — —/— — — — — — — — — — 2016 4/4 0.3 7.3 56.6% 57.9% 44.2% 56.5% 65.5% 52.2% 36.5%
Career — 369/392 2.0 3.9 66.8% 62.7% 46.8% 52.2% 45.8% 57.4% 42.7% — 66/563 1.2 5.4 55.5% 60.8% 44.2% 46.1% 49.2% 53.1% 42.7%

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 Alison Riske-Amritraj Klara Koukalova
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
19 2010 1555 111.2 +1.84 -2.58 0.891 48.4% — — +148 47.6% -0.05 3–2 (60%) 1–2 (33%) 101.6 -0.48 2001 1520 104.0 — — — — — +55 — 47.8% +0.26 4–1 (80%) 0–1 — +1.03
20 2011 1529 104.5 -0.76 -3.92 0.787 45.3% -61 — +195 30.8% -1.46 2–2 (50%) 0–1 — -0.54 2002 1527 105.4 — — — — — +71 — 50.0% -0.42 2–4 (33%) 1–0 — +0.68
21 2012 1488 105.5 -0.75 -1.19 0.819 45.5% -48 — — 20.0% -1.50 0–2 0–1 — -0.29 2003 1537 119.8 — — — — -60 +108 — 44.4% -0.35 7–8 (47%) 1–3 (25%) 99.1 +0.56
22 2013 1641 130.7 +2.70 -0.60 1.122 52.3% -106 — +142 62.5% +0.75 3–5 (38%) 1–1 — +0.38 2004 1612 117.6 — — — — -110 +85 +30 49.5% -0.07 8–7 (53%) 6–4 (60%) 103.5 +0.67
23 2014 1712 132.8 +0.21 -0.06 1.000 49.9% -36 -193 +87 52.0% +0.24 4–6 (40%) 8–5 (62%) 101.2 +0.46 2005 1764 126.4 — — — — -90 +7 -18 55.5% +0.09 15–4 (79%) 9–2 (82%) 118.0 +1.13
24 2015 1603 124.5 -0.32 -1.07 0.947 48.9% -8 -94 +139 40.2% -0.55 4–9 (31%) 2–6 (25%) 90.8 -1.44 2006 1547 107.1 — — — — +14 +77 +135 37.0% -1.05 2–7 (22%) 3–3 (50%) 92.0 +0.20
25 2016 1741 129.3 +1.19 +1.21 1.075 51.5% +6 -229 +1 54.0% +0.29 8–10 (44%) 5–11 (31%) 94.1 -0.28 2007 1579 115.5 — — — — -13 +59 — 50.0% +0.06 3–5 (38%) 3–4 (43%) 98.3 +0.21
26 2017 1642 129.3 +0.27 -0.29 0.966 49.2% -18 -76 +133 45.5% -0.33 6–7 (46%) 7–4 (64%) 102.8 -2.21 2008 1574 111.3 — — — — -45 +84 — 48.5% -0.08 10–9 (53%) 3–5 (38%) 100.5 +0.48
27 2018 1626 131.0 +1.17 +1.53 1.083 51.5% -55 -21 +173 51.9% +0.31 5–10 (33%) 5–8 (38%) 96.8 -0.45 2009 1534 110.3 — — — — -72 +97 — 35.0% -0.95 5–5 (50%) 4–5 (44%) 100.5 -0.40
28 2019 1806 145.4 +1.26 +1.59 1.017 50.2% -57 -289 +135 50.4% +0.04 14–9 (61%) 9–9 (50%) 104.5 -1.98 2010 1657 126.4 — — — — -49 -66 +4 46.2% -0.20 10–5 (67%) 5–6 (45%) 106.2 +0.89
29 2020 1745 135.6 -0.19 +1.24 1.039 50.8% +5 — — 48.6% +0.06 2–5 (29%) 3–5 (38%) 96.3 0.00 2011 1713 131.7 — — — — -15 -60 -54 50.4% -0.03 13–6 (68%) 7–4 (64%) 109.2 +0.80
30 2021 1767 130.1 +0.04 +0.89 1.022 50.4% +21 — +165 51.4% -0.01 4–6 (40%) 3–2 (60%) 96.5 +0.58 2012 1721 128.0 — — — — -45 -9 -3 51.0% +0.17 10–6 (63%) 5–7 (42%) 103.3 -0.68
31 2022 1732 137.6 +1.42 +0.41 1.033 50.6% +25 -253 +159 49.5% +0.03 9–6 (60%) 5–6 (45%) 101.9 +0.60 2013 1676 139.6 — — — — -9 +65 +31 51.7% +0.15 9–9 (50%) 6–9 (40%) 95.7 -1.87
32 2023 1603 111.8 -2.22 -2.80 0.696 42.6% +41 — — 22.2% -1.89 0–4 (0%) 0–3 (0%) — -0.21 2014 1612 127.9 -2.87 -0.03 0.906 47.8% +13 +61 +151 50.8% -0.13 10–8 (56%) 11–4 (73%) 104.3 -0.55
33 — — — — — — — — — — — — — — — — 2015 1549 110.8 -2.79 +1.36 0.935 48.1% -28 +101 +170 40.5% -0.84 2–6 (25%) 3–4 (43%) 95.0 -0.51
34 — — — — — — — — — — — — — — — — 2016 1486 101.6 -2.24 -1.27 0.765 45.0% -28 — — 27.3% -1.55 0–3 (0%) 0–1 — +0.16
Career — 1860 137.7 +0.67 +0.22 1.002 50.0% -17 -149 +135 48.5% -0.06 64–83 (44%) 49–64 (43%) 93.8 -1.51 — 1804 125.9 -2.79 +0.55 0.910 47.8% -34 +51 +56 47.9% -0.19 110–93 (54%) 67–62 (52%) 106.6 +0.50

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.