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

Danai Udomchoke vs Justin Gimelstob H2H: 0-1

Justin Gimelstob holds a 1–0 lead over Danai Udomchoke in their ATP head-to-head. Across 1 main-draw meeting, Justin Gimelstob leads 1–0 on hard courts. Most recently, Justin Gimelstob won the 2006 Delray Beach Open round of 32 6-4 6-4.

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Danai Udomchoke
THA Age 45 Right-Handed 173 cm / 5'8"
H2H
0 – 1
1 main draw meetings
Justin Gimelstob
USA Age 49 Right-Handed 196 cm / 6'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Justin Gimelstob #110 6-4 6-4 Danai Udomchoke #109 Match data Feb 2, 2006* 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
Danai Udomchoke #1,207 #77 646 1,631 18 52 25.7% 0 0 0 0 0 0
Justin Gimelstob #841 #63 733 1,722 107 171 38.5% 0 0 0 0 0 0

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 Danai Udomchoke Justin Gimelstob
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1995 1–1 50.0% — 1,529 0 0
19 2001 2–1 66.7% #283 1,509 0 0 1996 3–9 25.0% #152 1,510 0 0
20 2002 0–1 0.0% #211 1,489 0 0 1997 17–23 42.5% #104 1,630 0 0
21 2003 0–1 0.0% #162 1,437 0 0 1998 14–15 48.3% #80 1,661 0 0
22 2004 0–3 0.0% #204 1,488 0 0 1999 17–26 39.5% #82 1,645 0 0
23 2005 2–4 33.3% #121 1,562 0 0 2000 14–16 46.7% #97 1,675 0 0
24 2006 6–12 33.3% #104 1,563 0 0 2001 3–12 20.0% #177 1,595 0 0
25 2007 7–19 26.9% #154 1,498 0 0 2002 5–6 45.5% #106 1,619 0 0
26 2008 0–2 0.0% #152 1,525 0 0 2003 9–17 34.6% #106 1,532 0 0
27 2009 0–5 0.0% #162 1,501 0 0 2004 1–5 16.7% #162 1,507 0 0
28 2010 0–1 0.0% #457 1,480 0 0 2005 8–9 47.1% #104 1,595 0 0
29 2011 1–1 50.0% #210 1,507 0 0 2006 14–20 41.2% #86 1,606 0 0
30 2012 0–2 0.0% #149 1,523 0 0 2007 1–12 7.7% #556 1,537 0 0

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 Danai Udomchoke Justin Gimelstob
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 %
18 — — — — — — — — — — — — — — — — — 1995 1 1 2 50.0% — — — — — — — — — — — —
19 2001 2 1 3 66.7% — — — — — — — — — — — — 1996 3 7 10 30.0% — — — — 0 2 2 0.0% — — — —
20 2002 0 1 1 0.0% — — — — — — — — — — — — 1997 15 16 31 48.4% — — — — 1 4 5 20.0% 1 3 4 25.0%
21 2003 0 1 1 0.0% — — — — — — — — — — — — 1998 5 7 12 41.7% 4 2 6 66.7% 3 4 7 42.9% 2 2 4 50.0%
22 2004 0 3 3 0.0% — — — — — — — — — — — — 1999 13 16 29 44.8% 2 5 7 28.6% 1 4 5 20.0% 1 1 2 50.0%
23 2005 1 3 4 25.0% — — — — 1 1 2 50.0% — — — — 2000 10 9 19 52.6% 0 3 3 0.0% 4 4 8 50.0% — — — —
24 2006 5 8 13 38.5% — — — — 1 4 5 20.0% — — — — 2001 2 10 12 16.7% — — — — 1 2 3 33.3% — — — —
25 2007 4 11 15 26.7% 0 4 4 0.0% 3 4 7 42.9% — — — — 2002 3 5 8 37.5% — — — — 2 1 3 66.7% — — — —
26 2008 0 2 2 0.0% — — — — — — — — — — — — 2003 5 11 16 31.3% 0 2 2 0.0% 4 4 8 50.0% — — — —
27 2009 0 3 3 0.0% — — — — 0 2 2 0.0% — — — — 2004 1 4 5 20.0% — — — — 0 1 1 0.0% — — — —
28 2010 0 1 1 0.0% — — — — — — — — — — — — 2005 6 8 14 42.9% — — — — 2 1 3 66.7% — — — —
29 2011 1 1 2 50.0% — — — — — — — — — — — — 2006 6 13 19 31.6% 2 3 5 40.0% 6 4 10 60.0% — — — —
30 2012 0 2 2 0.0% — — — — — — — — — — — — 2007 1 5 6 16.7% 0 2 2 0.0% 0 4 4 0.0% 0 1 1 0.0%
Career — 13 37 50 26.0% 0 4 4 0.0% 5 11 16 31.2% — — — — — 71 112 183 38.8% 8 17 25 32.0% 24 35 59 40.7% 4 7 11 36.4%

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 69/69 of Danai Udomchoke's and 259/278 of Justin Gimelstob'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 Danai Udomchoke Justin Gimelstob
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%
18 — —/— — — — — — — — — — 1995 2/2 8.0 5.0 62.7% 69.5% 44.6% 68.1% 31.7% 59.4% 30.5%
19 2001 3/3 3.3 2.3 60.2% 71.8% 45.1% 57.4% 41.1% 61.0% 36.5% 1996 10/12 5.1 3.4 54.9% 73.3% 46.5% 41.8% 50.8% 61.4% 35.3%
20 — —/— — — — — — — — — — 1997 36/40 6.0 5.8 58.7% 71.8% 44.8% 51.3% 37.8% 60.5% 35.9%
21 2003 1/1 2.0 2.0 56.6% 50.0% 39.1% 58.3% 50.0% 45.3% 34.0% 1998 26/29 5.5 3.9 59.7% 72.6% 47.9% 55.6% 44.3% 62.5% 39.5%
22 2004 3/3 1.3 3.7 62.5% 59.7% 47.9% 49.9% 31.5% 54.9% 37.9% 1999 37/43 6.9 3.9 60.4% 72.2% 47.6% 56.4% 39.5% 62.4% 35.7%
23 2005 6/6 2.7 4.3 58.4% 65.1% 50.3% 58.0% 48.6% 58.3% 36.2% 2000 29/30 8.3 4.4 58.7% 73.7% 49.6% 57.8% 36.8% 63.2% 37.6%
24 2006 18/18 4.3 3.5 63.0% 69.5% 42.7% 62.0% 29.5% 60.0% 35.9% 2001 13/15 5.6 5.7 55.5% 71.2% 45.9% 45.8% 36.3% 59.8% 34.1%
25 2007 26/26 3.3 3.8 59.9% 67.8% 47.9% 49.2% 39.3% 59.6% 35.4% 2002 10/11 5.5 5.7 53.9% 69.8% 43.4% 49.0% 29.6% 57.9% 37.0%
26 2008 2/2 5.5 7.0 66.4% 56.0% 37.9% 49.4% 45.0% 49.9% 34.3% 2003 26/26 7.3 4.2 54.5% 73.8% 45.2% 63.5% 42.7% 60.7% 36.5%
27 2009 5/5 3.4 3.0 61.2% 67.1% 42.4% 62.1% 40.0% 57.5% 30.2% 2004 6/6 4.5 5.5 48.7% 73.2% 49.4% 40.7% 26.3% 60.7% 35.9%
28 2010 1/1 0.0 2.0 65.4% 64.7% 38.9% 57.1% 0.0% 55.8% 27.5% 2005 17/17 11.4 4.9 56.8% 77.1% 52.2% 59.4% 40.1% 66.2% 35.8%
29 2011 2/2 2.0 3.0 64.4% 64.0% 45.6% 52.3% 56.3% 57.7% 40.5% 2006 34/34 7.0 2.9 56.6% 72.4% 47.8% 63.7% 36.2% 61.7% 34.9%
30 2012 2/2 4.5 3.5 63.3% 60.0% 44.8% 43.4% 47.7% 54.5% 33.5% 2007 13/13 4.3 4.8 57.1% 65.3% 43.1% 49.5% 26.4% 55.8% 29.5%
Career — 69/70 3.4 3.6 61.2% 66.8% 45.5% 54.8% 37.8% 58.5% 35.3% — 259/278 6.8 4.4 57.4% 72.4% 47.1% 55.6% 38.2% 61.5% 35.9%

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 Danai Udomchoke Justin Gimelstob
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
18 2000 1511 104.2 — — — — — — — — — — — — — 1995 1530 110.0 -1.36 +1.92 0.750 45.8% — — — 37.5% -0.63 1–0 — — -0.13
19 2001 1509 104.7 -0.29 -0.14 0.936 49.8% +18 — — 57.1% +0.86 1–0 — — +0.29 1996 1510 118.9 +0.13 +0.36 0.915 48.2% +28 — — 29.6% -0.93 1–2 (33%) 1–4 (20%) 97.5 -0.63
20 2002 1489 101.7 — — — — — — — 33.3% -2.33 0–1 1–0 — +0.07 1997 1630 134.5 -1.35 -0.78 0.909 48.5% +30 — -55 43.3% -0.47 7–6 (54%) 10–8 (56%) 103.8 +0.60
21 2003 1438 91.4 +0.50 -1.38 0.622 40.0% — — — 0.0% -3.50 — — — -0.10 1998 1661 129.0 +0.39 +1.22 1.052 50.8% -10 -75 -71 50.7% +0.12 6–8 (43%) 4–9 (31%) 96.0 -0.12
22 2004 1489 108.9 -1.95 -0.64 0.840 46.7% +25 — — 12.5% -1.63 0–1 — — -0.11 1999 1645 137.7 -0.21 -1.19 0.949 49.1% +36 -75 -122 45.0% -0.28 3–10 (23%) 7–12 (37%) 91.8 -1.22
23 2005 1563 118.8 -1.66 -0.22 0.869 47.6% -47 — — 36.8% -0.89 2–1 (67%) 1–2 (33%) 101.5 -0.36 2000 1675 126.8 +0.05 +0.25 1.022 50.4% +34 -174 -115 47.5% -0.40 5–7 (42%) 10–6 (63%) 99.6 +0.17
24 2006 1564 116.2 -2.69 -0.23 0.899 48.1% +6 — +5 31.7% -1.10 2–2 (50%) 2–4 (33%) 99.8 -0.02 2001 1596 108.5 -1.35 -2.71 0.849 47.0% +17 — -76 29.3% -1.39 2–4 (33%) 3–4 (43%) 96.1 +0.32
25 2007 1499 113.6 -3.16 -1.20 0.876 47.4% +15 -71 +50 37.5% -0.94 2–8 (20%) 6–4 (60%) 96.8 +0.93 2002 1620 119.3 -1.95 +1.16 0.880 46.9% +9 — -59 40.7% -0.81 2–0 1–2 (33%) — -0.03
26 2008 1525 106.5 -3.90 -1.95 0.684 42.5% — — — 33.3% -2.67 0–2 1–0 — +0.02 2003 1532 117.2 -2.07 -0.87 0.929 48.9% +13 — +76 40.0% -0.51 3–5 (38%) 3–7 (30%) 95.7 +1.70
27 2009 1501 108.8 -2.60 -1.67 0.711 44.3% +41 — — 0.0% -2.64 — 0–2 — +0.11 2004 1507 110.1 -0.55 -0.52 0.913 47.3% +4 — — 23.1% -1.69 0–3 (0%) — — -0.42
28 2010 1480 100.3 -0.48 +0.05 0.621 41.7% — — — 0.0% -3.50 — — — -0.02 2005 1596 127.5 +2.04 +0.31 1.059 51.1% -56 — +71 48.9% +0.08 2–5 (29%) 6–7 (46%) 99.7 -0.05
29 2011 1508 106.0 -0.56 -1.62 0.959 49.1% — — — 40.0% -0.20 1–0 0–1 — +0.21 2006 1606 122.4 -0.69 -1.72 0.913 49.0% -77 -132 +106 44.9% -0.32 3–5 (38%) 6–7 (46%) 100.7 +0.54
30 2012 1523 106.3 +0.44 -2.27 0.738 45.0% — — — 28.6% -1.71 0–1 1–0 — -0.04 2007 1537 116.4 -4.94 -3.75 0.668 43.5% -37 — +128 10.0% -2.37 0–1 0–2 — -0.45
31 2013 1519 97.2 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
33 2015 1501 96.5 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1631 112.5 -2.44 -0.87 0.852 47.1% +9 -71 +31 32.2% -1.18 8–16 (33%) 12–13 (48%) 96.6 +1.40 — 1722 132.5 -0.75 -0.68 0.933 48.8% +5 -103 -6 41.7% -0.51 35–56 (38%) 51–68 (43%) 92.8 +0.10

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.