H2H data updated: 2026-09-07 00:00 UTC

Mariano Zabaleta vs Nicolas Kiefer H2H: 0-1

Nicolas Kiefer holds a 1–0 lead over Mariano Zabaleta in their ATP head-to-head. Across 1 main-draw meeting, Nicolas Kiefer leads 1–0 on hard courts. Most recently, Nicolas Kiefer won the 1999 Vienna Open round of 32 6-3 6-4.

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Mariano Zabaleta
ARG Age 48 Right-Handed 183 cm / 6'0"
H2H
0 – 1
1 main-draw meetings
Nicolas Kiefer
GER Age 49 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicolas Kiefer #11 6-3 6-4 Mariano Zabaleta #27 Match data Oct 14, 1999* R32 Vienna Open ATP Championship Series → modern equivalent ATP 500 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
Mariano Zabaleta #1,009 #21 1,426 1,868 201 208 49.1% 0 0 0 0 3 3
Nicolas Kiefer #720 #4 2,447 1,995 347 255 57.6% 0 0 0 1 5 6

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 Mariano Zabaleta Nicolas Kiefer
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1994 0–1 0.0% — 1,489 0 0
17 1995 2–2 50.0% — 1,514 0 0 1995 3–3 50.0% #206 1,527 0 0
18 1996 9–8 52.9% #103 1,599 0 0 1996 7–9 43.8% #128 1,563 0 0
19 1997 0–6 0.0% #257 1,532 0 0 1997 26–16 61.9% #32 1,799 0 1
20 1998 14–8 63.6% #63 1,692 0 1 1998 31–25 55.4% #35 1,792 0 1
21 1999 28–29 49.1% #28 1,686 0 1 1999 53–21 71.6% #6 1,922 0 4
22 2000 19–27 41.3% #61 1,654 0 1 2000 30–16 65.2% #20 1,900 0 6
23 2001 18–18 50.0% #59 1,728 0 1 2001 26–25 51.0% #42 1,763 0 6
24 2002 20–28 41.7% #53 1,629 0 1 2002 19–24 44.2% #72 1,717 0 6
25 2003 33–24 57.9% #27 1,755 0 2 2003 19–17 52.8% #58 1,727 0 6
26 2004 25–21 54.3% #54 1,690 0 3 2004 34–20 63.0% #21 1,886 0 6
27 2005 20–16 55.6% #83 1,723 0 3 2005 31–22 58.5% #22 1,862 0 6
28 2006 4–8 33.3% #243 1,595 0 3 2006 14–8 63.6% #48 1,863 0 6
29 2007 9–11 45.0% #104 1,602 0 3 2007 19–12 61.3% #49 1,906 0 6
30 2008 0–2 0.0% #1141 1,556 0 3 2008 22–17 56.4% #38 1,889 0 6
31 — — — — — — — 2009 12–16 42.9% #116 1,762 0 6
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 Mariano Zabaleta Nicolas Kiefer
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 — — — — 2 2 4 50.0% — — — — — — — — 1995 — — — — — — — — — — — — 3 3 6 50.0%
18 1996 — — — — 9 8 17 52.9% — — — — — — — — 1996 1 2 3 33.3% 3 4 7 42.9% 1 1 2 50.0% 2 2 4 50.0%
19 1997 0 2 2 0.0% 0 4 4 0.0% — — — — — — — — 1997 7 5 12 58.3% 3 4 7 42.9% 5 2 7 71.4% 11 5 16 68.8%
20 1998 — — — — 14 8 22 63.6% — — — — — — — — 1998 24 15 39 61.5% 4 4 8 50.0% 2 3 5 40.0% 1 3 4 25.0%
21 1999 9 13 22 40.9% 18 14 32 56.3% — — — — 1 2 3 33.3% 1999 41 15 56 73.2% 2 2 4 50.0% 6 1 7 85.7% 4 3 7 57.1%
22 2000 11 16 27 40.7% 8 10 18 44.4% 0 1 1 0.0% — — — — 2000 27 11 38 71.1% 1 3 4 25.0% 2 2 4 50.0% — — — —
23 2001 9 7 16 56.3% 9 10 19 47.4% 0 1 1 0.0% — — — — 2001 11 13 24 45.8% 6 6 12 50.0% 4 2 6 66.7% 5 4 9 55.6%
24 2002 3 13 16 18.8% 17 13 30 56.7% 0 1 1 0.0% 0 1 1 0.0% 2002 10 15 25 40.0% 1 5 6 16.7% 7 3 10 70.0% 1 1 2 50.0%
25 2003 13 12 25 52.0% 20 10 30 66.7% 0 1 1 0.0% 0 1 1 0.0% 2003 14 11 25 56.0% 1 3 4 25.0% 4 3 7 57.1% — — — —
26 2004 2 7 9 22.2% 22 12 34 64.7% — — — — 1 2 3 33.3% 2004 30 14 44 68.2% 2 4 6 33.3% 2 2 4 50.0% — — — —
27 2005 4 5 9 44.4% 16 11 27 59.3% — — — — — — — — 2005 15 13 28 53.6% 6 4 10 60.0% 2 2 4 50.0% 8 3 11 72.7%
28 2006 0 2 2 0.0% 4 6 10 40.0% — — — — — — — — 2006 8 4 12 66.7% 6 4 10 60.0% — — — — — — — —
29 2007 0 1 1 0.0% 9 9 18 50.0% 0 1 1 0.0% — — — — 2007 17 9 26 65.4% — — — — 2 3 5 40.0% — — — —
30 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2008 12 11 23 52.2% 5 4 9 55.6% 5 2 7 71.4% — — — —
31 — — — — — — — — — — — — — — — — — 2009 4 7 11 36.4% 7 7 14 50.0% 1 2 3 33.3% — — — —
32 — — — — — — — — — — — — — — — — — 2010 — — — — 0 1 1 0.0% 1 2 3 33.3% — — — —
Career — 51 79 130 39.2% 148 118 266 55.6% 0 5 5 0.0% 2 6 8 25.0% — 221 145 366 60.4% 47 55 102 46.1% 44 30 74 59.5% 35 25 60 58.3%

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 375/409 of Mariano Zabaleta's and 537/601 of Nicolas Kiefer'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 Mariano Zabaleta Nicolas Kiefer
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 4/4 1.8 1.0 63.3% 55.9% 48.1% 46.0% 34.2% 53.0% 41.5% 1995 6/6 4.7 2.3 61.5% 72.6% 51.3% 62.7% 44.1% 64.8% 36.3%
18 1996 17/17 1.1 2.4 73.2% 63.3% 46.1% 54.9% 43.4% 57.8% 44.1% 1996 11/16 6.1 2.5 52.2% 76.6% 47.8% 53.2% 49.7% 62.7% 39.8%
19 1997 5/6 2.8 4.4 60.6% 67.3% 47.1% 53.2% 36.8% 59.3% 30.6% 1997 37/42 7.9 3.5 55.2% 77.0% 48.3% 60.5% 52.5% 64.1% 36.7%
20 1998 18/22 6.2 4.7 52.8% 72.2% 51.9% 64.8% 44.7% 62.7% 40.5% 1998 49/56 6.2 4.7 53.7% 74.8% 47.8% 55.1% 44.4% 62.5% 39.0%
21 1999 51/57 4.7 3.9 53.1% 71.6% 49.4% 56.9% 38.8% 61.2% 37.0% 1999 56/74 6.6 4.3 51.5% 75.7% 53.2% 61.8% 43.5% 64.7% 40.4%
22 2000 37/46 5.5 3.7 49.5% 71.0% 49.9% 60.0% 41.6% 60.2% 36.9% 2000 38/46 6.4 4.3 52.7% 74.9% 52.3% 61.7% 48.3% 64.3% 40.1%
23 2001 32/36 5.0 3.7 54.5% 71.0% 50.7% 60.2% 47.4% 61.5% 37.9% 2001 44/51 6.3 4.1 50.3% 71.1% 48.8% 54.0% 50.7% 60.0% 40.0%
24 2002 43/48 4.3 3.3 58.3% 67.9% 50.7% 53.8% 43.4% 60.5% 35.9% 2002 40/43 6.2 4.5 52.6% 74.1% 47.8% 58.8% 50.7% 61.5% 37.6%
25 2003 55/57 3.1 2.7 58.8% 69.6% 52.1% 51.0% 41.5% 62.4% 40.6% 2003 36/36 6.5 3.8 50.8% 73.1% 49.9% 58.1% 44.7% 61.8% 37.4%
26 2004 45/46 3.8 2.9 61.6% 70.9% 52.5% 55.5% 40.2% 63.6% 39.1% 2004 51/54 7.3 3.8 54.9% 77.8% 48.4% 61.1% 41.4% 64.5% 38.7%
27 2005 36/36 4.4 4.2 56.7% 70.9% 52.8% 60.5% 41.5% 63.2% 39.7% 2005 52/53 7.6 3.8 53.4% 74.2% 51.4% 56.4% 51.3% 63.6% 40.9%
28 2006 12/12 3.6 3.6 58.8% 71.9% 46.8% 59.6% 32.0% 61.7% 36.4% 2006 21/22 7.4 4.0 51.7% 72.0% 50.1% 59.5% 43.3% 61.3% 40.2%
29 2007 18/20 3.7 3.7 59.7% 67.6% 49.4% 57.3% 39.5% 60.4% 39.3% 2007 30/31 6.7 2.5 57.0% 79.9% 51.6% 64.6% 33.9% 67.8% 38.1%
30 2008 2/2 8.5 6.5 50.4% 71.9% 41.1% 58.7% 31.0% 56.2% 33.3% 2008 34/39 7.2 2.4 53.6% 76.3% 51.9% 55.4% 44.9% 64.9% 39.6%
31 — —/— — — — — — — — — — 2009 28/28 7.7 3.9 52.0% 75.0% 47.3% 62.9% 45.8% 61.9% 35.4%
32 — —/— — — — — — — — — — 2010 4/4 11.3 6.5 51.8% 77.7% 47.3% 55.7% 31.0% 63.0% 28.6%
Career — 375/409 4.2 3.5 57.3% 69.9% 50.6% 56.7% 41.4% 61.5% 38.5% — 537/602 6.9 3.8 53.1% 75.1% 49.9% 58.9% 46.0% 63.3% 38.9%

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 Mariano Zabaleta Nicolas Kiefer
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 1515 102.4 -1.10 +1.15 0.883 47.2% — +37 — 50.0% -1.10 1–1 1–0 — +0.34 1995 1528 117.0 +1.19 -1.22 1.032 51.3% +26 — — 50.0% 0.00 1–1 — — +0.08
18 1996 1599 129.5 -1.91 +3.31 1.045 50.4% — +34 — 48.6% +0.03 3–0 (100%) 2–3 (40%) 103.9 -0.44 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
19 1997 1532 99.5 -0.65 -2.22 0.751 44.9% — +30 — 0.0% -2.45 — 0–3 (0%) — -0.44 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%) 112.8 +0.64
20 1998 1693 135.0 +1.40 +0.76 1.086 51.6% — +49 — 60.7% +0.82 6–3 (67%) 7–4 (64%) 105.8 +0.16 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%) 100.3 -0.30
21 1999 1686 139.7 -0.12 -0.36 0.955 49.2% -82 +41 — 48.9% -0.15 13–8 (62%) 8–12 (40%) 102.1 -2.14 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%) 110.9 +0.49
22 2000 1654 140.1 -1.32 +0.40 0.927 48.9% -11 +35 — 44.7% -0.32 3–9 (25%) 11–9 (55%) 96.2 -1.74 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%) 104.4 -0.03
23 2001 1728 134.3 -0.06 -0.52 0.984 49.7% +4 -42 — 52.6% -0.02 6–8 (43%) 7–10 (41%) 94.8 +0.40 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%) 97.2 -2.55
24 2002 1630 131.3 -1.34 -1.62 0.909 48.4% -50 +149 — 45.0% -0.41 6–11 (35%) 10–10 (50%) 97.8 +0.24 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%) 98.4 -0.90
25 2003 1756 148.5 +0.98 +3.48 1.081 51.2% -111 +149 — 54.3% +0.34 11–6 (65%) 8–11 (42%) 105.3 -1.74 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%) 106.1 +0.36
26 2004 1691 140.6 +0.79 +1.45 1.075 51.2% -115 +205 — 52.3% +0.34 8–4 (67%) 8–13 (38%) 97.6 +0.76 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%) 109.1 +0.23
27 2005 1723 141.7 +0.72 +1.71 1.078 51.3% -113 +106 — 54.8% +0.40 5–5 (50%) 6–7 (46%) 98.2 -0.73 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%) 100.4 -1.12
28 2006 1596 111.4 -0.52 -1.38 0.949 49.1% — +127 — 40.0% -0.60 2–3 (40%) 3–1 (75%) 98.7 +0.08 2006 1863 140.5 -0.75 +2.34 1.039 50.6% +65 -104 — 60.0% +0.60 8–3 (73%) 7–4 (64%) 106.1 +0.78
29 2007 1603 126.2 -2.06 +1.76 0.992 49.7% — +106 — 49.0% -0.08 0–4 (0%) 5–2 (71%) 96.8 +0.12 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
30 2008 1556 98.9 -0.91 -5.19 0.761 44.5% — — — 16.7% -2.33 — 1–0 — +0.34 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%) 102.3 -1.13
31 2009 1547 98.5 — — — — — — — — — — — — — 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%) 99.1 -1.73
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 — 1868 142.7 -0.16 +0.79 0.999 49.9% -64 +94 — 49.6% -0.01 64–62 (51%) 77–85 (48%) 98.6 -1.17 — 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

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.