H2H data updated: 2026-09-02 00:00 UTC

Sam Querrey vs Stefan Koubek H2H: 0-1

Stefan Koubek holds a 1–0 lead over Sam Querrey in their ATP head-to-head. Across 1 main-draw meeting, Stefan Koubek leads 1–0 on hard courts. Most recently, Stefan Koubek won the 2007 US Open first round 7-6(1) 6-1 6-1.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Sam Querrey
USA Age 38 Right-Handed 198 cm / 6'6"
H2H
0 – 1
1 main draw meetings
Stefan Koubek
AUT Age 49 Left-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefan Koubek #63 7-6(1) 6-1 6-1 Sam Querrey #48 Match data Aug 29, 2007* R128 US Open Grand Slam 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
Sam Querrey #529 #11 2,595 2,038 372 316 54.1% 0 0 0 2 8 10
Stefan Koubek #906 #20 1,143 1,796 195 235 45.3% 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 Sam Querrey Stefan Koubek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1994 0–1 0.0% #1219 1,485 0 0
18 2006 6–11 35.3% #130 1,541 0 0 — — — — — — —
19 2007 19–22 46.3% #63 1,637 0 0 1996 1–2 33.3% #311 1,482 0 0
20 2008 28–24 53.8% #39 1,778 0 1 1997 4–2 66.7% #125 1,543 0 0
21 2009 39–22 63.9% #25 1,900 0 2 1998 2–4 33.3% #93 1,533 0 0
22 2010 35–21 62.5% #18 1,872 0 6 1999 29–25 53.7% #46 1,681 0 1
23 2011 12–13 48.0% #93 1,817 0 6 2000 26–27 49.1% #54 1,625 0 2
24 2012 37–24 60.7% #22 2,005 0 7 2001 20–22 47.6% #63 1,697 0 2
25 2013 25–21 54.3% #46 1,875 0 7 2002 18–31 36.7% #54 1,578 0 2
26 2014 26–20 56.5% #35 1,896 0 7 2003 19–24 44.2% #53 1,648 0 3
27 2015 20–24 45.5% #59 1,812 0 7 2004 22–24 47.8% #60 1,757 0 3
28 2016 28–23 54.9% #31 1,797 0 8 2005 6–15 28.6% #182 1,570 0 3
29 2017 35–20 63.6% #13 1,944 0 10 2006 14–9 60.9% #80 1,693 0 3
30 2018 21–22 48.8% #51 1,823 0 10 2007 22–26 45.8% #47 1,762 0 3
31 2019 24–17 58.5% #44 1,898 0 10 2008 3–6 33.3% #192 1,704 0 3
32 2020 3–6 33.3% #53 1,818 0 10 2009 6–11 35.3% #135 1,638 0 3
33 2021 10–16 38.5% #108 1,689 0 10 2010 3–5 37.5% #131 1,632 0 3
34 2022 4–10 28.6% #329 1,644 0 10 2011 0–1 0.0% #647 1,602 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 Sam Querrey Stefan Koubek
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 — — — — — — — — — — — — — — — — — 1994 — — — — 0 1 1 0.0% — — — — — — — —
18 2006 5 10 15 33.3% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
19 2007 18 14 32 56.3% 1 5 6 16.7% 0 2 2 0.0% 0 1 1 0.0% 1996 — — — — 1 2 3 33.3% — — — — — — — —
20 2008 23 16 39 59.0% 4 4 8 50.0% 1 3 4 25.0% 0 1 1 0.0% 1997 1 1 2 50.0% 3 1 4 75.0% — — — — — — — —
21 2009 30 14 44 68.2% 1 4 5 20.0% 8 4 12 66.7% — — — — 1998 0 2 2 0.0% 2 2 4 50.0% — — — — — — — —
22 2010 19 14 33 57.6% 7 5 12 58.3% 9 2 11 81.8% — — — — 1999 2 7 9 22.2% 25 13 38 65.8% 0 1 1 0.0% 2 4 6 33.3%
23 2011 8 8 16 50.0% 2 4 6 33.3% 2 1 3 66.7% — — — — 2000 18 14 32 56.3% 7 10 17 41.2% 1 2 3 33.3% 0 1 1 0.0%
24 2012 28 16 44 63.6% 2 4 6 33.3% 7 4 11 63.6% — — — — 2001 12 13 25 48.0% 8 7 15 53.3% 0 2 2 0.0% — — — —
25 2013 21 14 35 60.0% 3 4 7 42.9% 1 3 4 25.0% — — — — 2002 8 17 25 32.0% 7 9 16 43.8% 3 3 6 50.0% 0 2 2 0.0%
26 2014 16 14 30 53.3% 4 3 7 57.1% 6 3 9 66.7% — — — — 2003 9 11 20 45.0% 6 9 15 40.0% 2 3 5 40.0% 2 1 3 66.7%
27 2015 8 15 23 34.8% 6 5 11 54.5% 6 4 10 60.0% — — — — 2004 8 10 18 44.4% 10 11 21 47.6% 1 2 3 33.3% 3 1 4 75.0%
28 2016 16 14 30 53.3% 4 5 9 44.4% 8 4 12 66.7% — — — — 2005 3 7 10 30.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
29 2017 23 13 36 63.9% 5 4 9 55.6% 7 3 10 70.0% — — — — 2006 6 4 10 60.0% 4 4 8 50.0% — — — — 4 1 5 80.0%
30 2018 16 16 32 50.0% 1 4 5 20.0% 4 2 6 66.7% — — — — 2007 15 15 30 50.0% 6 8 14 42.9% 0 2 2 0.0% 1 1 2 50.0%
31 2019 13 14 27 48.1% 3 1 4 75.0% 8 2 10 80.0% — — — — 2008 3 6 9 33.3% — — — — — — — — — — — —
32 2020 3 4 7 42.9% 0 2 2 0.0% — — — — — — — — 2009 4 5 9 44.4% 1 4 5 20.0% 1 2 3 33.3% — — — —
33 2021 2 9 11 18.2% 0 2 2 0.0% 8 5 13 61.5% — — — — 2010 3 3 6 50.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
34 2022 1 5 6 16.7% 1 1 2 50.0% 2 4 6 33.3% — — — — 2011 0 1 1 0.0% — — — — — — — — — — — —
Career — 250 210 460 54.3% 44 57 101 43.6% 78 47 125 62.4% 0 2 2 0.0% — 92 116 208 44.2% 83 89 172 48.3% 8 19 27 29.6% 12 11 23 52.2%

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 684/688 of Sam Querrey's and 390/430 of Stefan Koubek'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 Sam Querrey Stefan Koubek
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 — —/— — — — — — — — — — 1994 1/1 0.0 1.0 76.1% 45.7% 18.2% 0.0% 28.6% 39.1% 37.7%
18 2006 17/17 11.4 3.2 57.2% 75.9% 49.8% 62.8% 42.9% 64.6% 34.0% — —/— — — — — — — — — —
19 2007 41/41 12.4 3.2 56.6% 79.2% 48.3% 59.9% 39.4% 65.8% 33.9% 1996 3/3 1.0 3.7 66.3% 48.8% 38.8% 48.3% 43.4% 45.6% 39.8%
20 2008 51/52 10.2 3.2 59.1% 74.3% 49.1% 61.1% 41.2% 64.2% 35.5% 1997 5/6 3.2 3.2 61.8% 61.8% 57.4% 46.6% 51.3% 60.1% 47.7%
21 2009 61/61 11.8 3.0 59.4% 80.0% 53.4% 60.4% 44.4% 69.2% 36.2% 1998 6/6 2.8 3.0 61.9% 64.4% 44.5% 49.8% 42.8% 56.9% 37.5%
22 2010 56/56 12.3 3.4 61.5% 79.4% 50.9% 64.4% 45.2% 68.3% 35.1% 1999 46/54 2.6 2.3 58.6% 66.4% 52.1% 56.8% 40.4% 60.8% 39.5%
23 2011 25/25 8.9 3.2 59.6% 74.8% 51.2% 66.6% 31.2% 65.2% 34.4% 2000 38/53 4.2 3.9 59.6% 67.7% 49.6% 52.4% 40.4% 60.2% 37.0%
24 2012 61/61 11.6 3.9 57.6% 80.5% 51.1% 60.0% 42.0% 68.1% 36.0% 2001 38/42 3.5 3.4 58.2% 66.1% 50.6% 58.1% 43.5% 59.4% 36.3%
25 2013 45/46 12.8 3.6 59.6% 78.6% 48.7% 57.6% 35.7% 66.5% 33.6% 2002 39/49 3.5 3.7 58.9% 65.2% 48.6% 48.7% 40.1% 58.3% 37.2%
26 2014 45/46 14.4 2.8 60.5% 79.4% 51.9% 73.7% 41.8% 68.7% 33.8% 2003 43/43 2.7 2.8 60.0% 65.0% 51.0% 58.8% 39.9% 59.5% 38.5%
27 2015 44/44 13.8 3.6 59.5% 78.7% 54.4% 64.0% 37.1% 68.9% 33.7% 2004 45/46 3.6 3.0 63.1% 65.9% 50.1% 55.2% 39.2% 60.1% 37.6%
28 2016 51/51 13.1 3.1 58.6% 79.9% 52.3% 59.4% 39.6% 68.5% 33.4% 2005 21/21 4.3 3.7 60.1% 63.6% 48.3% 56.0% 42.7% 57.4% 36.9%
29 2017 55/55 13.5 3.2 57.1% 79.8% 51.8% 62.5% 49.5% 67.9% 37.0% 2006 22/23 3.5 3.3 55.8% 68.2% 51.8% 58.7% 40.8% 60.7% 39.0%
30 2018 43/43 14.3 3.7 58.2% 81.9% 51.7% 60.0% 41.2% 69.3% 34.2% 2007 48/48 4.0 2.7 59.2% 67.9% 52.4% 56.6% 46.6% 61.4% 37.4%
31 2019 41/41 16.8 4.0 62.1% 81.2% 49.4% 60.5% 33.2% 69.1% 33.8% 2008 9/9 4.6 3.6 58.6% 65.0% 42.6% 46.4% 40.7% 55.7% 34.1%
32 2020 9/9 16.8 3.6 60.3% 78.2% 50.8% 33.4% 31.7% 67.5% 31.1% 2009 17/17 3.8 3.1 54.3% 70.4% 50.5% 42.5% 38.1% 60.9% 36.2%
33 2021 25/26 15.2 5.2 56.8% 81.9% 47.7% 52.4% 33.2% 67.3% 30.3% 2010 8/8 4.8 3.3 60.6% 61.5% 48.0% 42.1% 41.7% 56.6% 37.6%
34 2022 14/14 12.4 4.7 58.3% 78.6% 46.1% 56.3% 26.6% 64.8% 29.4% 2011 1/1 0.0 2.0 74.0% 51.4% 30.8% 16.7% 100.0% 46.0% 30.2%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 Sam Querrey Stefan Koubek
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 2005 1490 99.8 — — — — — — — — — — — — — 1994 1485 97.3 +0.16 -0.91 0.620 38.4% — — — 0.0% -3.50 — — — +0.13
18 2006 1542 124.2 +1.62 -2.01 0.962 49.2% -13 — — 46.7% -0.31 1–7 (13%) 2–4 (33%) — -0.03 — — — — — — — — — — — — — — — —
19 2007 1637 141.5 +2.16 -1.29 0.990 50.0% +50 -158 — 47.6% -0.08 6–8 (43%) 9–10 (47%) — +0.09 1996 1482 96.6 -2.52 -2.52 0.731 43.0% — +24 — 28.6% -1.86 1–0 — — +0.08
20 2008 1779 145.5 +1.02 -0.70 0.993 50.1% +29 -209 -254 51.5% +0.04 11–8 (58%) 9–8 (53%) — +0.64 1997 1543 118.6 -0.10 +1.82 1.193 53.2% — +48 — 62.5% +1.00 2–2 (50%) 1–1 — +0.15
21 2009 1900 149.0 +4.79 +0.01 1.176 52.3% +27 -361 -223 62.0% +0.61 8–11 (42%) 13–12 (52%) — +1.27 1998 1533 108.9 -0.90 -0.95 0.869 47.6% — +69 — 33.3% -0.80 2–1 (67%) 2–1 (67%) — +0.21
22 2010 1873 152.2 +3.95 -0.55 1.108 51.9% +5 -250 +9 58.4% +0.58 13–11 (54%) 14–17 (45%) — +2.65 1999 1681 136.8 -0.61 +1.04 1.009 50.2% -157 +114 — 51.6% +0.05 5–5 (50%) 7–7 (50%) — -0.19
23 2011 1817 141.7 +1.37 -1.06 0.989 49.9% +19 -173 +81 46.7% -0.10 3–4 (43%) 4–7 (36%) — +0.50 2000 1625 128.0 -1.07 -0.50 0.930 48.8% +9 +46 -98 48.5% -0.25 9–8 (53%) 10–10 (50%) — +1.65
24 2012 2006 157.4 +4.09 +0.39 1.129 52.1% +3 -305 -92 57.8% +0.40 12–10 (55%) 20–13 (61%) — -0.61 2001 1698 130.5 -1.96 -0.75 0.896 48.3% -36 -2 — 45.3% -0.31 9–7 (56%) 9–4 (69%) — -0.37
25 2013 1875 153.6 +2.58 -2.07 1.003 50.0% +71 -164 -51 50.0% -0.07 9–8 (53%) 15–15 (50%) — +0.18 2002 1578 131.6 -3.16 -0.15 0.892 47.7% -9 +101 -81 40.5% -0.74 5–8 (38%) 12–7 (63%) — -0.55
26 2014 1896 144.5 +3.69 -2.25 1.080 51.0% +17 -178 -23 56.4% +0.33 6–9 (40%) 12–12 (50%) — +0.27 2003 1648 134.0 -1.86 +1.04 0.952 49.2% -22 0 -152 46.3% -0.27 4–8 (33%) 9–2 (82%) — -1.35
27 2015 1812 152.4 +3.52 -1.09 1.082 51.0% -39 -68 +110 46.7% -0.02 7–9 (44%) 13–18 (42%) — -2.68 2004 1757 132.2 -2.49 +0.57 0.941 48.8% -16 -76 -256 45.5% -0.22 11–2 (85%) 9–7 (56%) — -1.10
28 2016 1797 152.8 +4.13 -1.97 1.060 50.9% -38 -84 +223 56.0% +0.27 8–9 (47%) 18–16 (53%) — +1.80 2005 1570 110.6 -3.42 -1.33 0.865 47.6% +70 +14 — 35.8% -0.96 1–6 (14%) 3–4 (43%) — +0.80
29 2017 1945 161.8 +4.11 +1.06 1.153 52.3% -43 -192 +131 59.1% +0.70 11–6 (65%) 14–13 (52%) — +1.92 2006 1694 126.5 -1.41 +1.06 0.991 49.7% +45 -95 — 51.7% -0.05 9–2 (82%) 6–2 (75%) — +0.80
30 2018 1823 152.3 +4.08 -0.93 1.114 51.7% -5 -127 +252 54.1% +0.58 6–11 (35%) 9–20 (31%) — +1.23 2007 1763 141.7 -1.17 +0.49 0.969 49.6% +25 -117 — 47.8% -0.16 8–9 (47%) 9–7 (56%) — -0.82
31 2019 1898 146.9 +4.59 -1.49 1.095 51.3% -82 -158 +201 55.6% +0.20 5–5 (50%) 18–15 (55%) — -0.90 2008 1704 118.9 -4.34 -0.28 0.769 45.0% +16 — — 42.3% -0.69 1–2 (33%) 4–2 (67%) — -0.40
32 2020 1818 128.8 +2.33 -0.47 0.956 48.3% -33 — — 37.0% -0.67 1–1 4–3 (57%) — -0.60 2009 1639 122.2 -1.09 -0.53 0.926 48.9% +44 -39 -164 41.3% -0.28 1–3 (25%) 1–6 (14%) — -0.24
33 2021 1690 124.0 +2.41 -3.84 0.926 48.7% -54 — +303 39.1% -0.53 3–5 (38%) 8–8 (50%) — -0.24 2010 1633 125.7 -2.71 +0.54 0.867 46.8% +123 — — 47.6% +0.09 1–1 2–3 (40%) — +0.03
34 2022 1645 117.4 -0.20 -3.77 0.835 47.4% -72 — +250 28.6% -0.97 2–1 (67%) 2–7 (22%) — +0.03 2011 1603 113.9 -0.31 -0.24 0.560 38.7% — — — 0.0% -3.50 — — — -0.19
Career — 2039 155.6 +3.33 -1.02 1.064 51.0% 0 -181 +77 53.2% +0.22 112–123 (48%) 184–198 (48%) 96.0 +0.81 — 1796 135.7 -1.82 +0.18 0.932 48.8% -3 +19 -140 45.7% -0.31 69–64 (52%) 84–63 (57%) 111.6 -0.32

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.