H2H data updated: 2026-09-01 00:00 UTC

Nicolas Kiefer vs Igor Kunitsyn H2H: 2-0

Nicolas Kiefer holds a 2–0 lead over Igor Kunitsyn in their ATP head-to-head. Across 2 main-draw meetings, Nicolas Kiefer leads 1–0 on carpet and 1–0 on hard courts. Most recently, Nicolas Kiefer won the 2007 Los Angeles Open round of 16 6-3 6-2.

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Nicolas Kiefer
GER Age 49 Right-Handed 183 cm / 6'0"
H2H
2 – 0
2 main draw meetings
Igor Kunitsyn
RUS Age 44 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicolas Kiefer #409 6-3 6-2 Igor Kunitsyn #99 Match data Jul 20, 2007* R16 Los Angeles Open International Series → modern equivalent ATP 250 Hard
Nicolas Kiefer #37 6-2 6-4 Igor Kunitsyn #153 Match data Oct 15, 2005* SF Moscow ATP International Series → modern equivalent ATP 250 Carpet

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
Nicolas Kiefer #720 #4 2,447 1,995 347 255 57.6% 0 0 0 1 5 6
Igor Kunitsyn #1,093 #35 1,562 1,755 87 149 36.9% 0 0 0 0 1 1

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 Nicolas Kiefer Igor Kunitsyn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1994 0–1 0.0% — 1,489 0 0 — — — — — — —
17 1995 3–3 50.0% #206 1,527 0 0 1999 0–2 0.0% #315 1,489 0 0
18 1996 7–9 43.8% #128 1,563 0 0 — — — — — — —
19 1997 26–16 61.9% #32 1,799 0 1 — — — — — — —
20 1998 31–25 55.4% #35 1,792 0 1 2002 0–1 0.0% #149 1,499 0 0
21 1999 53–21 71.6% #6 1,922 0 4 2003 0–3 0.0% #193 1,479 0 0
22 2000 30–16 65.2% #20 1,900 0 6 2004 2–2 50.0% #158 1,494 0 0
23 2001 26–25 51.0% #42 1,763 0 6 2005 3–2 60.0% #129 1,545 0 0
24 2002 19–24 44.2% #72 1,717 0 6 2006 10–15 40.0% #94 1,612 0 0
25 2003 19–17 52.8% #58 1,727 0 6 2007 16–24 40.0% #116 1,600 0 0
26 2004 34–20 63.0% #21 1,886 0 6 2008 15–14 51.7% #47 1,690 0 1
27 2005 31–22 58.5% #22 1,862 0 6 2009 16–30 34.8% #104 1,650 0 1
28 2006 14–8 63.6% #48 1,863 0 6 2010 5–14 26.3% #100 1,681 0 1
29 2007 19–12 61.3% #49 1,906 0 6 2011 16–21 43.2% #71 1,720 0 1
30 2008 22–17 56.4% #38 1,889 0 6 2012 4–19 17.4% #162 1,542 0 1
31 2009 12–16 42.9% #116 1,762 0 6 2013 0–2 0.0% #548 1,555 0 1
32 2010 1–3 25.0% #722 1,722 0 6 — — — — — — —

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 Nicolas Kiefer Igor Kunitsyn
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 %
16 1994 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
17 1995 — — — — — — — — — — — — 3 3 6 50.0% 1999 — — — — — — — — — — — — 0 2 2 0.0%
18 1996 1 2 3 33.3% 3 4 7 42.9% 1 1 2 50.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
19 1997 7 5 12 58.3% 3 4 7 42.9% 5 2 7 71.4% 11 5 16 68.8% — — — — — — — — — — — — — — — — —
20 1998 24 15 39 61.5% 4 4 8 50.0% 2 3 5 40.0% 1 3 4 25.0% 2002 0 1 1 0.0% — — — — — — — — — — — —
21 1999 41 15 56 73.2% 2 2 4 50.0% 6 1 7 85.7% 4 3 7 57.1% 2003 — — — — 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0%
22 2000 27 11 38 71.1% 1 3 4 25.0% 2 2 4 50.0% — — — — 2004 — — — — — — — — — — — — 2 2 4 50.0%
23 2001 11 13 24 45.8% 6 6 12 50.0% 4 2 6 66.7% 5 4 9 55.6% 2005 — — — — — — — — — — — — 3 2 5 60.0%
24 2002 10 15 25 40.0% 1 5 6 16.7% 7 3 10 70.0% 1 1 2 50.0% 2006 2 8 10 20.0% 0 1 1 0.0% 2 4 6 33.3% 6 2 8 75.0%
25 2003 14 11 25 56.0% 1 3 4 25.0% 4 3 7 57.1% — — — — 2007 14 16 30 46.7% 1 3 4 25.0% 1 4 5 20.0% 0 1 1 0.0%
26 2004 30 14 44 68.2% 2 4 6 33.3% 2 2 4 50.0% — — — — 2008 10 9 19 52.6% 4 2 6 66.7% 1 3 4 25.0% — — — —
27 2005 15 13 28 53.6% 6 4 10 60.0% 2 2 4 50.0% 8 3 11 72.7% 2009 13 21 34 38.2% 1 6 7 14.3% 2 3 5 40.0% — — — —
28 2006 8 4 12 66.7% 6 4 10 60.0% — — — — — — — — 2010 4 10 14 28.6% 0 2 2 0.0% 1 2 3 33.3% — — — —
29 2007 17 9 26 65.4% — — — — 2 3 5 40.0% — — — — 2011 10 15 25 40.0% 1 2 3 33.3% 5 4 9 55.6% — — — —
30 2008 12 11 23 52.2% 5 4 9 55.6% 5 2 7 71.4% — — — — 2012 3 11 14 21.4% 1 4 5 20.0% 0 4 4 0.0% — — — —
31 2009 4 7 11 36.4% 7 7 14 50.0% 1 2 3 33.3% — — — — 2013 0 2 2 0.0% — — — — — — — — — — — —
32 2010 — — — — 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
Career — 221 145 366 60.4% 47 55 102 46.1% 44 30 74 59.5% 35 25 60 58.3% — 56 93 149 37.6% 8 21 29 27.6% 12 25 37 32.4% 11 10 21 52.4%

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 537/601 of Nicolas Kiefer's and 234/236 of Igor Kunitsyn'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 Nicolas Kiefer Igor Kunitsyn
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 1995 6/6 4.7 2.3 61.5% 72.6% 51.3% 62.7% 44.1% 64.8% 36.3% 1999 2/2 1.5 1.0 54.7% 64.9% 43.6% 45.0% 16.7% 55.5% 23.1%
18 1996 11/16 6.1 2.5 52.2% 76.6% 47.8% 53.2% 49.7% 62.7% 39.8% — —/— — — — — — — — — —
19 1997 37/42 7.9 3.5 55.2% 77.0% 48.3% 60.5% 52.5% 64.1% 36.7% — —/— — — — — — — — — —
20 1998 49/56 6.2 4.7 53.7% 74.8% 47.8% 55.1% 44.4% 62.5% 39.0% 2002 1/1 6.0 9.0 46.3% 59.4% 51.3% 57.9% 41.7% 55.0% 37.6%
21 1999 56/74 6.6 4.3 51.5% 75.7% 53.2% 61.8% 43.5% 64.7% 40.4% 2003 3/3 2.7 2.3 53.2% 60.5% 44.2% 35.0% 33.3% 52.9% 31.2%
22 2000 38/46 6.4 4.3 52.7% 74.9% 52.3% 61.7% 48.3% 64.3% 40.1% 2004 4/4 3.3 2.5 54.3% 66.3% 50.2% 67.5% 39.8% 59.3% 41.0%
23 2001 44/51 6.3 4.1 50.3% 71.1% 48.8% 54.0% 50.7% 60.0% 40.0% 2005 5/5 1.2 0.8 56.1% 66.1% 56.3% 43.7% 44.7% 61.8% 40.8%
24 2002 40/43 6.2 4.5 52.6% 74.1% 47.8% 58.8% 50.7% 61.5% 37.6% 2006 25/25 2.1 1.8 58.4% 67.4% 51.1% 60.4% 41.2% 60.7% 36.0%
25 2003 36/36 6.5 3.8 50.8% 73.1% 49.9% 58.1% 44.7% 61.8% 37.4% 2007 40/40 2.2 2.6 57.0% 63.3% 47.7% 52.3% 48.6% 56.7% 36.0%
26 2004 51/54 7.3 3.8 54.9% 77.8% 48.4% 61.1% 41.4% 64.5% 38.7% 2008 27/29 2.1 1.8 60.2% 65.1% 50.5% 48.3% 42.5% 58.9% 41.5%
27 2005 52/53 7.6 3.8 53.4% 74.2% 51.4% 56.4% 51.3% 63.6% 40.9% 2009 46/46 3.0 1.5 65.0% 65.5% 51.3% 53.4% 39.8% 60.3% 36.1%
28 2006 21/22 7.4 4.0 51.7% 72.0% 50.1% 59.5% 43.3% 61.3% 40.2% 2010 19/19 2.1 1.2 65.1% 65.6% 45.3% 50.4% 36.3% 58.0% 32.0%
29 2007 30/31 6.7 2.5 57.0% 79.9% 51.6% 64.6% 33.9% 67.8% 38.1% 2011 37/37 3.9 1.8 57.6% 66.6% 50.1% 54.4% 45.0% 59.5% 36.8%
30 2008 34/39 7.2 2.4 53.6% 76.3% 51.9% 55.4% 44.9% 64.9% 39.6% 2012 23/23 3.3 1.7 59.5% 63.9% 46.6% 53.9% 45.5% 56.8% 34.5%
31 2009 28/28 7.7 3.9 52.0% 75.0% 47.3% 62.9% 45.8% 61.9% 35.4% 2013 2/2 3.5 3.5 53.9% 59.9% 47.9% 60.0% 50.0% 54.3% 30.1%
32 2010 4/4 11.3 6.5 51.8% 77.7% 47.3% 55.7% 31.0% 63.0% 28.6% — —/— — — — — — — — — —

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 Nicolas Kiefer Igor Kunitsyn
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
16 1994 1489 97.0 — — — — — — — 0.0% -4.00 — — — +0.05 — — — — — — — — — — — — — — — —
17 1995 1528 117.0 +1.19 -1.22 1.032 51.3% +26 — — 50.0% 0.00 1–1 — — +0.08 1999 1489 107.1 -0.95 -1.96 0.518 40.7% — — — 20.0% -2.40 0–1 — — -0.19
18 1996 1563 122.9 +0.33 +1.12 1.067 50.9% +8 -24 — 44.1% +0.09 0–1 2–3 (40%) — +0.80 2000 1474 96.9 — — — — — — — — — — — — —
19 1997 1799 139.8 +1.52 -0.54 1.021 50.8% -25 -229 -48 55.6% +0.30 14–3 (82%) 8–7 (53%) — +0.64 — — — — — — — — — — — — — — — —
20 1998 1792 151.1 +0.77 +1.69 1.039 50.9% +29 -161 -60 55.6% +0.37 10–11 (48%) 12–8 (60%) — -0.30 2002 1500 106.1 -2.95 +0.18 0.836 46.8% — — — 25.0% -1.50 — 1–0 — +0.09
21 1999 1923 157.7 +2.57 +3.33 1.144 52.6% +23 -302 -126 65.4% +0.99 15–6 (71%) 16–8 (67%) — +0.49 2003 1479 105.3 -0.37 -1.06 0.662 41.6% — — — 0.0% -3.43 — 0–1 — -0.24
22 2000 1900 146.0 +2.09 +2.25 1.124 52.3% +54 -332 -120 61.3% +0.85 9–2 (82%) 7–6 (54%) — -0.03 2004 1495 112.5 +0.24 +1.44 1.006 50.3% +22 — — 55.6% +0.22 0–1 2–1 (67%) — -0.15
23 2001 1763 149.2 -1.17 +2.22 1.001 50.2% +25 -132 +43 53.5% +0.24 6–10 (38%) 7–5 (58%) — -2.55 2005 1546 119.5 -1.10 +1.25 1.068 50.6% +20 — — 60.0% +0.20 — 1–0 — -0.21
24 2002 1718 142.5 -0.77 +1.14 0.977 49.8% +5 -139 +119 46.5% -0.05 4–4 (50%) 4–7 (36%) — -0.90 2006 1612 124.2 -1.62 -0.99 0.915 48.5% +24 — -77 41.1% -0.34 3–2 (60%) 4–3 (57%) — +0.85
25 2003 1727 134.5 +0.10 +0.13 0.980 49.8% +22 -144 +93 48.1% -0.22 6–1 (86%) 3–3 (50%) — +0.36 2007 1600 118.4 -5.09 -0.41 0.832 46.4% +32 -122 -150 37.8% -1.09 8–5 (62%) 10–7 (59%) — +0.33
26 2004 1887 148.7 +1.38 +2.62 1.092 51.5% +33 -284 -100 60.2% +0.52 12–6 (67%) 14–7 (67%) — +0.23 2008 1690 129.9 -3.43 +3.27 1.009 50.2% +21 -122 -239 48.6% +0.09 6–3 (67%) 4–7 (36%) — +1.39
27 2005 1862 154.9 +1.31 +3.44 1.125 52.2% +10 -139 -50 60.9% +0.77 8–8 (50%) 7–5 (58%) — -1.12 2009 1650 139.3 -2.20 -0.23 0.910 48.3% +16 -119 -141 38.6% -0.82 6–11 (35%) 8–11 (42%) — +0.50
28 2006 1863 140.5 -0.75 +2.34 1.039 50.6% +65 -104 — 60.0% +0.60 8–3 (73%) 7–4 (64%) — +0.78 2010 1681 127.8 -3.07 -2.57 0.763 45.5% +19 — -152 29.8% -1.47 1–3 (25%) 1–3 (25%) — -1.63
29 2007 1907 153.1 +4.21 +1.95 1.186 52.7% +55 — -153 65.2% +0.94 1–1 8–5 (62%) — -1.12 2011 1721 133.8 -3.11 +0.52 0.910 48.3% +1 -217 -97 41.5% -0.68 6–6 (50%) 8–4 (67%) — -0.07
30 2008 1889 153.4 +2.15 +3.22 1.128 51.9% +5 -79 -37 57.0% +0.37 7–5 (58%) 7–4 (64%) — -1.13 2012 1542 112.8 -4.40 -2.44 0.798 45.8% +58 -85 -8 25.0% -1.79 1–6 (14%) 4–8 (33%) — +0.32
31 2009 1762 145.0 -1.02 -0.24 0.930 49.3% +63 +45 +54 48.5% -0.09 4–4 (50%) 5–4 (56%) — -1.73 2013 1556 112.0 -0.69 -3.06 0.660 43.2% — — — 20.0% -2.40 0–1 — — +0.03
32 2010 1722 106.1 +0.99 -2.77 0.774 46.3% — — +51 27.3% -1.09 1–1 0–1 — -0.60 — — — — — — — — — — — — — — — —
Career — 1995 155.1 +1.02 +1.86 1.060 51.2% +25 -127 -17 56.7% +0.45 106–67 (61%) 107–77 (58%) 111.9 -1.01 — 1756 130.6 -3.10 -0.21 0.879 47.6% +22 -125 -118 38.1% -0.86 31–39 (44%) 43–45 (49%) 99.8 +0.43

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.