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

Gaston Gaudio vs Jan Siemerink H2H: 1-0

Gaston Gaudio holds a 1–0 lead over Jan Siemerink in their ATP head-to-head. Across 1 main-draw meeting, Gaston Gaudio leads 1–0 on hard courts. Most recently, Gaston Gaudio won the 2001 Miami Open round of 64 7-6(5) 6-2.

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Gaston Gaudio
ARG Age 47 Right-Handed 175 cm / 5'9"
H2H
1 – 0
1 main-draw meetings
Jan Siemerink
NED Age 56 Left-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Gaston Gaudio #31 7-6(5) 6-2 Jan Siemerink #85 Match data Mar 21, 2001* R64 Miami Open Masters 1000 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
Gaston Gaudio #1,025 #5 2,440 1,995 253 189 57.2% 1 0 0 2 5 8
Jan Siemerink #987 #14 1,863 1,902 261 262 49.9% 0 0 0 0 4 4

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 Gaston Gaudio Jan Siemerink
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1999 8–15 34.8% #72 1,531 0 0 1990 5–4 55.6% #135 1,541 0 0
21 2000 27–25 51.9% #34 1,648 0 0 1991 30–21 58.8% #26 1,756 0 1
22 2001 23–23 50.0% #48 1,691 0 0 1992 22–27 44.9% #57 1,741 0 1
23 2002 39–17 69.6% #21 1,828 0 2 1993 24–25 49.0% #53 1,669 0 1
24 2003 34–23 59.6% #34 1,764 0 2 1994 16–19 45.7% #81 1,686 0 1
25 2004 35–24 59.3% #10 1,805 1 3 1995 37–29 56.1% #21 1,768 0 1
26 2005 54–20 73.0% #10 1,869 1 8 1996 35–28 55.6% #15 1,861 0 2
27 2006 26–20 56.5% #34 1,697 1 8 1997 18–27 40.0% #78 1,738 0 2
28 2007 6–15 28.6% #182 1,625 1 8 1998 38–24 61.3% #19 1,809 0 4
29 2008 0–1 0.0% #969 1,605 1 8 1999 17–25 40.5% #88 1,653 0 4
30 2009 1–5 16.7% #167 1,525 1 8 2000 7–14 33.3% #104 1,573 0 4
31 2010 0–1 0.0% #326 1,467 1 8 2001 12–17 41.4% #127 1,563 0 4
32 — — — — — — — 2002 0–2 0.0% #438 1,531 0 4

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 Gaston Gaudio Jan Siemerink
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 %
20 1999 0 2 2 0.0% 8 12 20 40.0% 0 1 1 0.0% — — — — 1990 3 2 5 60.0% — — — — 1 1 2 50.0% 1 1 2 50.0%
21 2000 6 9 15 40.0% 21 12 33 63.6% 0 1 1 0.0% 0 3 3 0.0% 1991 16 7 23 69.6% 0 4 4 0.0% 1 3 4 25.0% 13 7 20 65.0%
22 2001 5 9 14 35.7% 16 11 27 59.3% 0 1 1 0.0% 2 2 4 50.0% 1992 10 12 22 45.5% 2 6 8 25.0% 1 2 3 33.3% 9 7 16 56.3%
23 2002 12 9 21 57.1% 25 6 31 80.6% 1 1 2 50.0% 1 1 2 50.0% 1993 11 13 24 45.8% 4 4 8 50.0% 1 3 4 25.0% 8 5 13 61.5%
24 2003 6 9 15 40.0% 27 12 39 69.2% 0 1 1 0.0% 1 1 2 50.0% 1994 9 11 20 45.0% 1 2 3 33.3% — — — — 6 6 12 50.0%
25 2004 5 10 15 33.3% 29 12 41 70.7% — — — — 1 2 3 33.3% 1995 20 12 32 62.5% 7 6 13 53.8% 3 3 6 50.0% 7 8 15 46.7%
26 2005 8 9 17 47.1% 41 7 48 85.4% — — — — 5 4 9 55.6% 1996 14 14 28 50.0% 2 4 6 33.3% 7 2 9 77.8% 12 8 20 60.0%
27 2006 5 6 11 45.5% 20 12 32 62.5% 1 1 2 50.0% 0 1 1 0.0% 1997 10 12 22 45.5% 4 5 9 44.4% 1 3 4 25.0% 3 7 10 30.0%
28 2007 1 3 4 25.0% 5 12 17 29.4% — — — — — — — — 1998 18 11 29 62.1% 0 4 4 0.0% 8 3 11 72.7% 12 6 18 66.7%
29 2008 — — — — 0 1 1 0.0% — — — — — — — — 1999 10 12 22 45.5% 1 4 5 20.0% 2 3 5 40.0% 4 6 10 40.0%
30 2009 — — — — 1 5 6 16.7% — — — — — — — — 2000 2 8 10 20.0% 4 3 7 57.1% 1 3 4 25.0% — — — —
31 2010 — — — — 0 1 1 0.0% — — — — — — — — 2001 6 6 12 50.0% 4 7 11 36.4% 2 4 6 33.3% — — — —
32 — — — — — — — — — — — — — — — — — 2002 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
Career — 48 66 114 42.1% 193 103 296 65.2% 2 6 8 25.0% 10 14 24 41.7% — 129 121 250 51.6% 29 50 79 36.7% 28 30 58 48.3% 75 61 136 55.1%

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 411/442 of Gaston Gaudio's and 448/514 of Jan Siemerink'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 Gaston Gaudio Jan Siemerink
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%
20 1999 21/23 2.1 3.5 58.6% 61.3% 49.4% 54.6% 44.0% 56.2% 40.6% — —/— — — — — — — — — —
21 2000 42/52 2.2 3.1 60.8% 66.4% 47.8% 56.3% 44.2% 59.0% 39.9% 1991 48/51 7.0 5.1 52.3% 75.3% 53.3% 58.8% 44.6% 64.8% 37.8%
22 2001 41/46 3.2 2.7 60.3% 68.6% 52.0% 60.6% 40.5% 62.0% 38.1% 1992 42/49 6.2 4.2 54.6% 72.8% 50.4% 63.1% 36.0% 62.7% 34.7%
23 2002 47/56 3.9 2.4 62.9% 70.4% 55.2% 57.1% 49.1% 64.4% 42.2% 1993 41/49 6.4 4.0 56.6% 76.6% 50.8% 62.6% 44.2% 65.2% 35.5%
24 2003 54/57 2.8 2.9 63.0% 67.1% 50.6% 52.2% 46.0% 61.0% 40.8% 1994 34/35 6.1 4.0 60.1% 75.5% 50.2% 63.0% 40.6% 65.5% 36.4%
25 2004 59/59 2.4 3.0 63.1% 68.5% 49.9% 57.0% 47.5% 61.7% 41.8% 1995 61/66 5.4 3.4 59.5% 73.7% 53.2% 64.8% 37.0% 65.3% 35.9%
26 2005 73/74 2.8 2.9 62.1% 68.4% 52.3% 60.7% 45.0% 62.2% 43.8% 1996 61/63 6.5 5.1 55.7% 75.7% 51.2% 65.5% 39.7% 64.8% 35.9%
27 2006 46/46 2.8 3.6 61.9% 68.2% 49.1% 55.6% 43.3% 61.0% 40.8% 1997 38/45 7.7 5.0 56.5% 74.2% 52.0% 66.9% 45.4% 64.4% 35.1%
28 2007 20/21 1.3 5.1 60.9% 62.6% 44.4% 44.9% 42.0% 55.4% 35.9% 1998 48/62 8.3 4.6 58.0% 77.7% 52.2% 65.2% 43.2% 66.9% 34.3%
29 2008 1/1 1.0 3.0 53.1% 30.8% 47.8% 33.3% 40.0% 38.8% 37.0% 1999 30/42 5.9 5.1 55.5% 73.7% 50.1% 56.9% 38.4% 63.1% 32.6%
30 2009 6/6 1.7 5.0 64.9% 62.2% 40.2% 53.9% 54.7% 54.8% 39.1% 2000 17/21 6.5 5.8 54.9% 73.6% 46.0% 64.2% 28.0% 61.4% 33.6%
31 2010 1/1 3.0 1.0 75.6% 63.2% 68.2% 81.8% 16.7% 64.4% 34.8% 2001 26/29 7.2 5.9 52.8% 75.6% 48.7% 56.6% 34.2% 62.7% 32.1%
32 — —/— — — — — — — — — — 2002 2/2 7.0 6.0 54.2% 76.2% 50.9% 42.9% 50.0% 64.8% 27.2%
Career — 411/442 2.7 3.1 62.0% 67.4% 50.5% 56.4% 45.1% 60.9% 41.0% — 448/523 6.6 4.6 56.3% 75.1% 51.3% 62.8% 40.0% 64.6% 35.2%

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 Gaston Gaudio Jan Siemerink
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
20 1999 1532 120.2 -3.16 +1.21 0.925 48.6% — +61 — 33.3% -0.93 2–4 (33%) 2–4 (33%) 96.9 -0.13 1990 1541 108.1 — — — — +36 — — 52.6% -0.05 1–0 — — +1.03
21 2000 1648 139.2 -1.88 +1.92 0.975 49.6% -157 +157 — 50.8% -0.08 7–10 (41%) 10–4 (71%) 103.6 -0.67 1991 1757 143.1 +3.22 -0.58 1.074 51.5% +40 -248 -209 55.7% +0.44 11–10 (52%) 14–13 (52%) 103.1 -0.39
22 2001 1691 142.7 -0.10 +0.88 1.001 50.0% -102 +74 — 51.7% -0.01 6–11 (35%) 15–9 (63%) 101.7 +0.14 1992 1741 139.7 +1.78 -2.28 0.929 49.2% +31 -264 -201 43.8% -0.47 7–7 (50%) 10–6 (63%) 101.1 -2.48
23 2002 1828 154.5 +2.21 +3.81 1.188 53.1% -81 +154 — 64.1% +0.82 11–6 (65%) 13–9 (59%) 105.8 -0.72 1993 1669 136.6 +2.63 -1.58 1.020 50.4% +20 -120 -143 50.0% +0.11 8–11 (42%) 13–14 (48%) 93.9 +0.60
24 2003 1764 144.0 +0.25 +2.55 1.046 50.7% -73 +146 — 56.0% +0.41 17–10 (63%) 6–13 (32%) 96.5 +0.01 1994 1686 139.2 +3.09 -0.26 1.054 50.9% -6 -131 — 48.8% +0.01 3–7 (30%) 8–8 (50%) 97.2 -1.29
25 2004 1806 148.5 +0.07 +4.61 1.092 51.5% -162 +199 — 58.0% +0.48 9–11 (45%) 9–12 (43%) 93.6 -1.50 1995 1768 149.5 +3.33 -1.32 1.035 50.6% -12 -116 -191 54.4% +0.22 11–8 (58%) 12–7 (63%) 111.6 -2.79
26 2005 1870 154.2 +0.77 +5.42 1.158 52.8% -146 +244 — 65.7% +0.95 16–6 (73%) 11–10 (52%) 105.3 +1.99 1996 1862 148.8 +2.53 -0.73 1.019 50.6% -13 -212 -147 54.0% +0.10 11–10 (52%) 30–16 (65%) 109.9 -1.35
27 2006 1697 131.9 -1.41 +2.09 1.047 50.8% -45 +240 — 55.4% +0.22 9–9 (50%) 7–6 (54%) 95.0 +3.39 1997 1739 137.7 +1.77 -1.30 0.987 50.2% +24 -75 -78 43.8% -0.28 7–12 (37%) 12–13 (48%) 97.6 -0.14
28 2007 1626 110.3 -4.55 -0.35 0.804 45.1% -16 +88 — 31.5% -1.76 4–4 (50%) 1–1 — -0.67 1998 1810 145.1 +3.80 -2.09 1.038 50.9% +13 -234 -13 57.3% +0.46 15–7 (68%) 14–16 (47%) 103.5 -0.24
29 2008 1605 96.3 -2.10 -4.49 0.605 37.9% — — — 0.0% -4.50 — — — +0.14 1999 1654 132.5 +1.25 -2.98 0.884 48.1% +56 -141 +72 42.6% -0.49 6–7 (46%) 7–9 (44%) 96.5 +0.21
30 2009 1525 113.6 -2.51 -0.87 0.865 46.9% — +95 — 25.0% -1.81 1–2 (33%) 0–1 — -0.07 2000 1573 115.4 -0.13 -3.10 0.870 47.9% +66 -41 +96 37.0% -0.83 3–5 (38%) 4–2 (67%) 98.7 +0.50
31 2010 1467 98.5 -3.63 -2.53 0.978 49.5% — — — 33.3% -1.00 0–1 — — +0.10 2001 1564 122.8 +0.45 -4.28 0.859 47.7% +102 -52 +33 38.7% -0.73 6–4 (60%) 6–11 (35%) 101.1 -0.11
32 — — — — — — — — — — — — — — — — 2002 1531 102.5 -1.57 -0.36 0.773 46.8% — — — 20.0% -1.20 0–1 1–3 (25%) — -0.01
Career — 1995 147.2 -0.36 +2.93 1.049 50.8% -111 +165 — 54.9% +0.22 82–74 (53%) 74–69 (52%) 99.3 +0.46 — 1902 144.8 +2.44 -1.62 0.993 50.1% +20 -133 -71 49.5% -0.03 89–89 (50%) 131–118 (53%) 104.4 -1.24

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.