H2H data updated: 2026-09-03 00:00 UTC

Byron Black vs Stefan Koubek H2H: 0-1

Stefan Koubek holds a 1–0 lead over Byron Black 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 2000 Delray Beach Open round of 32 6-4 7-6(4).

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Byron Black
ZIM Age 56 Right-Handed 175 cm / 5'9"
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 #33 6-4 7-6(4) Byron Black #59 Match data Mar 2, 2000* R32 Delray Beach Open ATP International Series → modern equivalent ATP 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
Byron Black #876 #22 1,283 1,873 240 230 51.1% 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 Byron Black Stefan Koubek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1994 0–1 0.0% #1219 1,485 0 0
19 — — — — — — — 1996 1–2 33.3% #311 1,482 0 0
20 — — — — — — — 1997 4–2 66.7% #125 1,543 0 0
21 1991 2–3 40.0% #123 1,521 0 0 1998 2–4 33.3% #93 1,533 0 0
22 1992 10–18 35.7% #142 1,544 0 0 1999 29–25 53.7% #46 1,681 0 1
23 1993 19–20 48.7% #84 1,662 0 0 2000 26–27 49.1% #54 1,625 0 2
24 1994 22–26 45.8% #66 1,734 0 0 2001 20–22 47.6% #63 1,697 0 2
25 1995 28–24 53.8% #40 1,834 0 0 2002 18–31 36.7% #54 1,578 0 2
26 1996 35–27 56.5% #44 1,746 0 1 2003 19–24 44.2% #53 1,648 0 3
27 1997 27–24 52.9% #76 1,723 0 1 2004 22–24 47.8% #60 1,757 0 3
28 1998 37–25 59.7% #28 1,737 0 1 2005 6–15 28.6% #182 1,570 0 3
29 1999 24–23 51.1% #65 1,690 0 2 2006 14–9 60.9% #80 1,693 0 3
30 2000 27–24 52.9% #35 1,710 0 2 2007 22–26 45.8% #47 1,762 0 3
31 2001 8–13 38.1% #196 1,652 0 2 2008 3–6 33.3% #192 1,704 0 3
32 2002 1–3 25.0% #317 1,636 0 2 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 Byron Black 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% — — — — — — — —
19 — — — — — — — — — — — — — — — — — 1996 — — — — 1 2 3 33.3% — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1997 1 1 2 50.0% 3 1 4 75.0% — — — — — — — —
21 1991 1 2 3 33.3% — — — — 1 1 2 50.0% — — — — 1998 0 2 2 0.0% 2 2 4 50.0% — — — — — — — —
22 1992 7 10 17 41.2% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0% 1999 2 7 9 22.2% 25 13 38 65.8% 0 1 1 0.0% 2 4 6 33.3%
23 1993 10 11 21 47.6% 1 1 2 50.0% 5 4 9 55.6% 3 4 7 42.9% 2000 18 14 32 56.3% 7 10 17 41.2% 1 2 3 33.3% 0 1 1 0.0%
24 1994 14 17 31 45.2% 0 1 1 0.0% 4 4 8 50.0% 4 4 8 50.0% 2001 12 13 25 48.0% 8 7 15 53.3% 0 2 2 0.0% — — — —
25 1995 12 12 24 50.0% 1 2 3 33.3% 7 4 11 63.6% 8 6 14 57.1% 2002 8 17 25 32.0% 7 9 16 43.8% 3 3 6 50.0% 0 2 2 0.0%
26 1996 21 15 36 58.3% 1 3 4 25.0% 4 4 8 50.0% 9 5 14 64.3% 2003 9 11 20 45.0% 6 9 15 40.0% 2 3 5 40.0% 2 1 3 66.7%
27 1997 16 14 30 53.3% 4 5 9 44.4% 5 3 8 62.5% 2 2 4 50.0% 2004 8 10 18 44.4% 10 11 21 47.6% 1 2 3 33.3% 3 1 4 75.0%
28 1998 24 16 40 60.0% 2 2 4 50.0% 10 3 13 76.9% 1 4 5 20.0% 2005 3 7 10 30.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
29 1999 12 15 27 44.4% 2 1 3 66.7% 2 3 5 40.0% 8 4 12 66.7% 2006 6 4 10 60.0% 4 4 8 50.0% — — — — 4 1 5 80.0%
30 2000 17 16 33 51.5% 1 4 5 20.0% 9 3 12 75.0% 0 1 1 0.0% 2007 15 15 30 50.0% 6 8 14 42.9% 0 2 2 0.0% 1 1 2 50.0%
31 2001 4 9 13 30.8% 0 1 1 0.0% 4 3 7 57.1% — — — — 2008 3 6 9 33.3% — — — — — — — — — — — —
32 2002 1 3 4 25.0% — — — — — — — — — — — — 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 — 139 140 279 49.8% 12 22 34 35.3% 53 35 88 60.2% 36 33 69 52.2% — 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 381/470 of Byron Black'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 Byron Black 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%
19 — —/— — — — — — — — — — 1996 3/3 1.0 3.7 66.3% 48.8% 38.8% 48.3% 43.4% 45.6% 39.8%
20 — —/— — — — — — — — — — 1997 5/6 3.2 3.2 61.8% 61.8% 57.4% 46.6% 51.3% 60.1% 47.7%
21 1991 4/5 3.0 2.8 56.1% 63.3% 48.1% 30.0% 32.9% 56.7% 35.5% 1998 6/6 2.8 3.0 61.9% 64.4% 44.5% 49.8% 42.8% 56.9% 37.5%
22 1992 21/28 2.4 3.0 60.8% 64.6% 50.3% 49.1% 40.0% 58.9% 38.4% 1999 46/54 2.6 2.3 58.6% 66.4% 52.1% 56.8% 40.4% 60.8% 39.5%
23 1993 36/39 2.9 3.6 60.3% 64.1% 48.9% 55.0% 49.1% 57.8% 40.0% 2000 38/53 4.2 3.9 59.6% 67.7% 49.6% 52.4% 40.4% 60.2% 37.0%
24 1994 42/48 3.2 2.5 57.5% 67.6% 49.1% 56.6% 44.7% 59.6% 37.7% 2001 38/42 3.5 3.4 58.2% 66.1% 50.6% 58.1% 43.5% 59.4% 36.3%
25 1995 40/52 3.8 2.9 60.8% 70.9% 51.6% 57.0% 39.7% 63.4% 38.2% 2002 39/49 3.5 3.7 58.9% 65.2% 48.6% 48.7% 40.1% 58.3% 37.2%
26 1996 47/62 2.5 2.6 60.1% 65.3% 50.9% 57.2% 48.7% 59.4% 37.8% 2003 43/43 2.7 2.8 60.0% 65.0% 51.0% 58.8% 39.9% 59.5% 38.5%
27 1997 41/51 4.0 3.0 57.5% 68.7% 51.7% 56.7% 44.2% 61.2% 41.1% 2004 45/46 3.6 3.0 63.1% 65.9% 50.1% 55.2% 39.2% 60.1% 37.6%
28 1998 46/62 3.8 2.4 60.0% 68.6% 52.1% 59.0% 43.0% 62.0% 40.8% 2005 21/21 4.3 3.7 60.1% 63.6% 48.3% 56.0% 42.7% 57.4% 36.9%
29 1999 42/47 4.9 2.3 59.3% 68.9% 51.3% 59.2% 37.1% 61.8% 38.3% 2006 22/23 3.5 3.3 55.8% 68.2% 51.8% 58.7% 40.8% 60.7% 39.0%
30 2000 40/51 3.5 1.6 62.1% 70.9% 53.0% 60.1% 42.1% 64.1% 40.4% 2007 48/48 4.0 2.7 59.2% 67.9% 52.4% 56.6% 46.6% 61.4% 37.4%
31 2001 20/21 2.2 1.7 64.3% 65.2% 51.4% 50.5% 42.5% 60.0% 34.9% 2008 9/9 4.6 3.6 58.6% 65.0% 42.6% 46.4% 40.7% 55.7% 34.1%
32 2002 2/4 3.0 1.0 66.7% 62.0% 42.4% 43.7% 55.6% 54.9% 29.3% 2009 17/17 3.8 3.1 54.3% 70.4% 50.5% 42.5% 38.1% 60.9% 36.2%
33 — —/— — — — — — — — — — 2010 8/8 4.8 3.3 60.6% 61.5% 48.0% 42.1% 41.7% 56.6% 37.6%
34 — —/— — — — — — — — — — 2011 1/1 0.0 2.0 74.0% 51.4% 30.8% 16.7% 100.0% 46.0% 30.2%
Career — 381/470 3.4 2.6 60.0% 67.7% 51.0% 56.4% 43.3% 60.9% 38.9% — 390/430 3.5 3.1 59.5% 66.0% 50.2% 54.1% 41.6% 59.6% 37.7%

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 Byron Black 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
19 — — — — — — — — — — — — — — — — 1996 1482 96.6 -2.52 -2.52 0.731 43.0% — +24 — 28.6% -1.86 1–0 — — +0.08
20 — — — — — — — — — — — — — — — — 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 1991 1521 104.2 -1.02 -0.06 0.821 45.3% +14 — — 41.7% -0.83 1–1 1–1 — -0.22 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 1992 1545 120.6 -1.55 +0.16 0.935 48.9% +19 — +38 39.1% -0.64 2–6 (25%) 6–5 (55%) — +0.55 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 1993 1663 132.7 -3.10 +1.66 0.948 49.0% -11 — -11 50.0% 0.00 3–4 (43%) 5–6 (45%) — +1.18 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 1994 1735 137.9 -1.20 +0.09 0.933 48.6% 0 — -52 44.4% -0.50 8–4 (67%) 10–9 (53%) — -1.35 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 1995 1834 141.6 +1.31 +1.27 1.043 50.6% -19 -332 -108 53.3% -0.04 9–9 (50%) 17–8 (68%) — -0.98 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 1996 1747 135.8 -2.17 +0.51 0.929 48.8% +32 -274 -13 51.4% -0.06 13–5 (72%) 11–10 (52%) — +0.90 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 1997 1724 143.0 -0.46 +2.90 1.057 51.0% +19 -166 +77 51.6% +0.20 7–7 (50%) 11–8 (58%) — -1.28 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 1998 1738 141.5 +0.32 +2.69 1.074 51.1% -11 -159 +112 57.4% +0.59 10–8 (56%) 8–12 (40%) — +1.98 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 1999 1691 138.9 -0.27 +0.43 1.001 49.9% +27 -63 +73 48.7% 0.00 7–4 (64%) 5–9 (36%) — +0.97 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 2000 1711 136.3 +1.49 +2.31 1.126 52.1% -21 -150 +129 53.6% +0.51 6–8 (43%) 9–14 (39%) — +1.00 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 2001 1652 123.1 -1.09 -1.12 0.873 47.9% -23 — +160 36.7% -0.80 2–1 (67%) 3–5 (38%) — -1.02 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 2002 1637 107.3 -2.90 -0.76 0.651 44.4% +5 — — 25.0% -1.50 1–0 0–1 — +0.04 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 — — — — — — — — — — — — — — — — 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 — 1873 141.2 -0.61 +1.24 0.995 49.9% +4 -184 +41 49.9% 0.00 69–57 (55%) 86–88 (49%) 103.5 +0.38 — 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.