H2H data updated: 2026-09-05 00:00 UTC

Julian Alonso vs Stefan Koubek H2H: 1-0

Julian Alonso holds a 1–0 lead over Stefan Koubek in their ATP head-to-head. Across 1 main-draw meeting, Julian Alonso leads 1–0 on clay. Most recently, Julian Alonso won the 2000 Tiriac Open round of 32 7-5 6-0.

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

Julian Alonso
ESP Age 49 Right-Handed 185 cm / 6'1"
H2H
1 – 0
1 main draw meetings
Stefan Koubek
AUT Age 49 Left-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Julian Alonso #142 7-5 6-0 Stefan Koubek #40 Match data Sep 14, 2000* R32 Tiriac Open ATP International Series → modern equivalent ATP 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
Julian Alonso #1,269 #30 1,113 1,702 50 64 43.9% 0 0 0 0 2 2
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 Julian Alonso Stefan Koubek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1994 0–1 0.0% #1219 1,485 0 0
18 1996 0–2 0.0% #227 1,485 0 0 — — — — — — —
19 1997 21–11 65.6% #36 1,702 0 1 1996 1–2 33.3% #311 1,482 0 0
20 1998 16–31 34.0% #103 1,559 0 2 1997 4–2 66.7% #125 1,543 0 0
21 1999 9–11 45.0% #112 1,591 0 2 1998 2–4 33.3% #93 1,533 0 0
22 2000 4–9 30.8% #170 1,543 0 2 1999 29–25 53.7% #46 1,681 0 1
23 — — — — — — — 2000 26–27 49.1% #54 1,625 0 2
24 — — — — — — — 2001 20–22 47.6% #63 1,697 0 2
25 — — — — — — — 2002 18–31 36.7% #54 1,578 0 2
26 — — — — — — — 2003 19–24 44.2% #53 1,648 0 3
27 — — — — — — — 2004 22–24 47.8% #60 1,757 0 3
28 — — — — — — — 2005 6–15 28.6% #182 1,570 0 3
29 — — — — — — — 2006 14–9 60.9% #80 1,693 0 3
30 — — — — — — — 2007 22–26 45.8% #47 1,762 0 3
31 — — — — — — — 2008 3–6 33.3% #192 1,704 0 3
32 — — — — — — — 2009 6–11 35.3% #135 1,638 0 3
33 — — — — — — — 2010 3–5 37.5% #131 1,632 0 3
34 — — — — — — — 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 Julian Alonso 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 1996 — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 1997 5 3 8 62.5% 15 7 22 68.2% — — — — 1 1 2 50.0% 1996 — — — — 1 2 3 33.3% — — — — — — — —
20 1998 3 13 16 18.8% 13 16 29 44.8% 0 1 1 0.0% 0 1 1 0.0% 1997 1 1 2 50.0% 3 1 4 75.0% — — — — — — — —
21 1999 1 2 3 33.3% 8 8 16 50.0% 0 1 1 0.0% — — — — 1998 0 2 2 0.0% 2 2 4 50.0% — — — — — — — —
22 2000 0 4 4 0.0% 4 5 9 44.4% — — — — — — — — 1999 2 7 9 22.2% 25 13 38 65.8% 0 1 1 0.0% 2 4 6 33.3%
23 — — — — — — — — — — — — — — — — — 2000 18 14 32 56.3% 7 10 17 41.2% 1 2 3 33.3% 0 1 1 0.0%
24 — — — — — — — — — — — — — — — — — 2001 12 13 25 48.0% 8 7 15 53.3% 0 2 2 0.0% — — — —
25 — — — — — — — — — — — — — — — — — 2002 8 17 25 32.0% 7 9 16 43.8% 3 3 6 50.0% 0 2 2 0.0%
26 — — — — — — — — — — — — — — — — — 2003 9 11 20 45.0% 6 9 15 40.0% 2 3 5 40.0% 2 1 3 66.7%
27 — — — — — — — — — — — — — — — — — 2004 8 10 18 44.4% 10 11 21 47.6% 1 2 3 33.3% 3 1 4 75.0%
28 — — — — — — — — — — — — — — — — — 2005 3 7 10 30.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
29 — — — — — — — — — — — — — — — — — 2006 6 4 10 60.0% 4 4 8 50.0% — — — — 4 1 5 80.0%
30 — — — — — — — — — — — — — — — — — 2007 15 15 30 50.0% 6 8 14 42.9% 0 2 2 0.0% 1 1 2 50.0%
31 — — — — — — — — — — — — — — — — — 2008 3 6 9 33.3% — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — — 2009 4 5 9 44.4% 1 4 5 20.0% 1 2 3 33.3% — — — —
33 — — — — — — — — — — — — — — — — — 2010 3 3 6 50.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
34 — — — — — — — — — — — — — — — — — 2011 0 1 1 0.0% — — — — — — — — — — — —
Career — 9 22 31 29.0% 40 38 78 51.3% 0 2 2 0.0% 1 2 3 33.3% — 92 116 208 44.2% 83 89 172 48.3% 8 19 27 29.6% 12 11 23 52.2%

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 Julian Alonso 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 — — — — — — — — — — — — — — — — 1994 1485 97.3 +0.16 -0.91 0.620 38.4% — — — 0.0% -3.50 — — — +0.13
18 1996 1485 105.6 — — — — — — — 0.0% -3.00 — 0–1 — -0.20 — — — — — — — — — — — — — — — —
19 1997 1703 138.3 — — — — -90 +22 — 56.8% +0.63 11–3 (79%) 3–6 (33%) 108.0 +0.69 1996 1482 96.6 -2.52 -2.52 0.731 43.0% — +24 — 28.6% -1.86 1–0 — — +0.08
20 1998 1560 120.5 — — — — -57 +95 — 36.0% -0.89 6–9 (40%) 6–11 (35%) 94.4 +0.24 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 1999 1591 119.4 — — — — -77 +90 — 43.1% -0.71 4–3 (57%) 5–3 (63%) 101.9 +0.71 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 2000 1544 113.2 — — — — -93 +111 — 31.0% -0.93 3–1 (75%) 2–2 (50%) 103.3 -0.02 1999 1681 136.8 -0.61 +1.04 1.009 50.2% -157 +114 — 51.6% +0.05 5–5 (50%) 7–7 (50%) 100.7 -0.19
23 2001 1537 101.1 — — — — — — — — — — — — — 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%) 102.0 +1.65
24 — — — — — — — — — — — — — — — — 2001 1698 130.5 -1.96 -0.75 0.896 48.3% -36 -2 — 45.3% -0.31 9–7 (56%) 9–4 (69%) 107.7 -0.37
25 — — — — — — — — — — — — — — — — 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%) 102.3 -0.55
26 — — — — — — — — — — — — — — — — 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%) 102.4 -1.35
27 — — — — — — — — — — — — — — — — 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%) 114.2 -1.10
28 — — — — — — — — — — — — — — — — 2005 1570 110.6 -3.42 -1.33 0.865 47.6% +70 +14 — 35.8% -0.96 1–6 (14%) 3–4 (43%) 94.3 +0.80
29 — — — — — — — — — — — — — — — — 2006 1694 126.5 -1.41 +1.06 0.991 49.7% +45 -95 — 51.7% -0.05 9–2 (82%) 6–2 (75%) 112.1 +0.80
30 — — — — — — — — — — — — — — — — 2007 1763 141.7 -1.17 +0.49 0.969 49.6% +25 -117 — 47.8% -0.16 8–9 (47%) 9–7 (56%) 103.2 -0.82
31 — — — — — — — — — — — — — — — — 2008 1704 118.9 -4.34 -0.28 0.769 45.0% +16 — — 42.3% -0.69 1–2 (33%) 4–2 (67%) 99.7 -0.40
32 — — — — — — — — — — — — — — — — 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%) 93.5 -0.24
33 — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — 2011 1603 113.9 -0.31 -0.24 0.560 38.7% — — — 0.0% -3.50 — — — -0.19
Career — 1703 127.4 — — — — -73 +75 — 42.4% -0.45 24–16 (60%) 16–23 (41%) 103.1 +1.25 — 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.