H2H data updated: 2026-09-14 00:00 UTC

Casey Dellacqua vs Jelena Kostanic Tosic H2H: 0-1

Jelena Kostanic Tosic holds a 1–0 lead over Casey Dellacqua in their WTA head-to-head. Across 1 main-draw meeting, Jelena Kostanic Tosic leads 1–0 on hard courts. Most recently, Jelena Kostanic Tosic won the 2005 Australian Open first round 3-6 6-2 6-2.

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Casey Dellacqua
Australia Age 41 Left-Handed 165 cm / 5'5"
H2H
0 – 1
1 main-draw meetings
Jelena Kostanic Tosic
CRO Age 45 Left-Handed 168 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jelena Kostanic Tosic #35 3-6 6-2 6-2 Casey Dellacqua #256 Match data Jan 19, 2005* R128 Australian Open Grand Slam 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
Casey Dellacqua #932 #26 1,725 1,757 80 106 43.0% 0 0 0 0 0 0
Jelena Kostanic Tosic #937 #32 900 1,709 112 152 42.4% 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 Casey Dellacqua Jelena Kostanic Tosic
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1998 1–2 33.3% #240 1,490 0 0
17 — — — — — — — 1999 4–5 44.4% #97 1,512 0 0
18 2003 0–1 0.0% #287 1,489 0 0 2000 10–13 43.5% #114 1,523 0 0
19 2004 0–2 0.0% #291 1,472 0 0 2001 4–4 50.0% #131 1,559 0 0
20 2005 1–2 33.3% #195 1,474 0 0 2002 14–17 45.2% #70 1,571 0 0
21 2006 3–4 42.9% #157 1,501 0 0 2003 16–20 44.4% #66 1,621 0 0
22 2007 6–12 33.3% #86 1,501 0 0 2004 22–26 45.8% #35 1,665 0 0
23 2008 18–17 51.4% #53 1,629 0 0 2005 11–21 34.4% #87 1,546 0 0
24 2009 0–3 0.0% #1002 1,597 0 0 2006 19–18 51.4% #51 1,576 0 0
25 2010 2–5 28.6% #227 1,563 0 0 2007 10–17 37.0% #103 1,534 0 0
26 2011 3–5 37.5% #134 1,541 0 0 2008 1–5 16.7% #114 1,512 0 0
27 2012 10–14 41.7% #101 1,592 0 0 — — — — — — —
28 2013 1–8 11.1% #142 1,490 0 0 2010 0–4 0.0% #830 1,472 0 0
29 2014 27–17 61.4% #29 1,741 0 0 — — — — — — —
30 2015 9–16 36.0% #116 1,628 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 Casey Dellacqua Jelena Kostanic Tosic
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 — — — — — — — — — — — — — — — — — 1998 — — — — 1 2 3 33.3% — — — — — — — —
17 — — — — — — — — — — — — — — — — — 1999 1 2 3 33.3% 2 2 4 50.0% — — — — 1 1 2 50.0%
18 2003 0 1 1 0.0% — — — — — — — — — — — — 2000 4 3 7 57.1% 6 7 13 46.2% 0 2 2 0.0% 0 1 1 0.0%
19 2004 0 2 2 0.0% — — — — — — — — — — — — 2001 0 2 2 0.0% 4 2 6 66.7% — — — — — — — —
20 2005 1 2 3 33.3% — — — — — — — — — — — — 2002 7 8 15 46.7% 7 8 15 46.7% 0 1 1 0.0% — — — —
21 2006 3 4 7 42.9% — — — — — — — — — — — — 2003 6 9 15 40.0% 9 8 17 52.9% 0 1 1 0.0% 1 2 3 33.3%
22 2007 5 9 14 35.7% 0 1 1 0.0% 1 2 3 33.3% — — — — 2004 11 18 29 37.9% 11 6 17 64.7% 0 2 2 0.0% — — — —
23 2008 11 9 20 55.0% 4 5 9 44.4% 3 3 6 50.0% — — — — 2005 2 10 12 16.7% 9 8 17 52.9% 0 2 2 0.0% 0 1 1 0.0%
24 2009 0 3 3 0.0% — — — — — — — — — — — — 2006 18 14 32 56.3% 0 2 2 0.0% 1 2 3 33.3% — — — —
25 2010 2 4 6 33.3% — — — — 0 1 1 0.0% — — — — 2007 9 11 20 45.0% 1 5 6 16.7% 0 1 1 0.0% — — — —
26 2011 0 1 1 0.0% 2 3 5 40.0% 1 1 2 50.0% — — — — 2008 0 2 2 0.0% 1 3 4 25.0% — — — — — — — —
27 2012 8 11 19 42.1% 0 1 1 0.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
28 2013 1 7 8 12.5% — — — — 0 1 1 0.0% — — — — 2010 0 2 2 0.0% 0 2 2 0.0% — — — — — — — —
29 2014 19 12 31 61.3% 3 3 6 50.0% 5 2 7 71.4% — — — — — — — — — — — — — — — — — — — — —
30 2015 3 9 12 25.0% 1 3 4 25.0% 5 4 9 55.6% — — — — — — — — — — — — — — — — — — — — —
Career — 53 74 127 41.7% 10 16 26 38.5% 17 16 33 51.5% — — — — — 58 81 139 41.7% 51 55 106 48.1% 1 11 12 8.3% 2 5 7 28.6%

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 163/185 of Casey Dellacqua's and 47/190 of Jelena Kostanic Tosic'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 Casey Dellacqua Jelena Kostanic Tosic
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%
19 2004 1/2 2.0 6.0 53.4% 56.4% 41.2% 66.7% 37.5% 49.3% 43.8% — —/— — — — — — — — — —
20 2005 1/3 1.0 7.0 54.3% 63.2% 50.0% 33.3% 42.9% 57.1% 36.8% — —/— — — — — — — — — —
21 2006 1/7 1.0 7.0 47.4% 55.6% 40.0% 60.0% 0.0% 47.4% 26.5% 2003 4/36 0.5 3.0 64.8% 51.0% 50.9% 32.3% 40.3% 50.9% 36.3%
22 2007 17/18 1.8 3.6 60.5% 60.6% 44.5% 42.3% 53.2% 54.1% 44.7% 2004 6/48 0.5 2.5 66.8% 51.0% 50.3% 56.5% 44.0% 50.4% 40.8%
23 2008 31/35 2.9 4.3 58.6% 63.1% 44.2% 54.4% 49.5% 55.4% 45.2% 2005 5/32 1.6 3.8 67.1% 63.2% 35.8% 50.5% 43.7% 53.6% 40.1%
24 2009 3/3 1.0 5.3 52.8% 46.5% 36.2% 28.4% 13.9% 42.2% 38.4% 2006 8/37 1.5 2.6 67.9% 56.8% 43.5% 51.7% 53.3% 51.9% 38.7%
25 2010 7/7 1.0 3.4 53.5% 55.2% 40.5% 37.9% 37.3% 48.1% 42.3% 2007 17/27 1.6 3.1 67.6% 61.5% 44.5% 53.1% 41.7% 56.0% 38.3%
26 2011 6/8 2.0 4.5 64.2% 60.4% 45.9% 63.2% 81.9% 55.0% 44.2% 2008 3/6 1.7 2.3 63.3% 62.0% 51.1% 65.9% 10.0% 58.1% 29.2%
27 2012 22/24 1.0 3.8 62.7% 59.3% 39.5% 49.5% 47.4% 51.8% 43.4% — —/— — — — — — — — — —
28 2013 9/9 0.9 3.0 61.8% 57.4% 45.2% 49.0% 53.9% 52.6% 33.7% 2010 4/4 1.0 4.5 64.0% 46.6% 41.6% 36.1% 38.8% 44.8% 36.4%
29 2014 41/44 1.7 3.0 59.5% 62.2% 49.4% 54.3% 48.9% 56.9% 43.5% — —/— — — — — — — — — —
30 2015 24/25 2.0 3.3 62.4% 61.9% 50.1% 52.0% 50.0% 57.4% 39.6% — —/— — — — — — — — — —
Career — 163/186 1.8 3.6 60.1% 60.8% 45.6% 50.9% 49.4% 54.6% 42.6% — 47/264 1.3 3.1 66.7% 57.4% 44.8% 50.6% 41.8% 53.1% 38.0%

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 Casey Dellacqua Jelena Kostanic Tosic
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 — — — — — — — — — — — — — — — — 1998 1491 103.8 — — — — — +41 — 42.9% +0.43 0–1 0–1 — +0.18
17 — — — — — — — — — — — — — — — — 1999 1512 116.4 — — — — +24 +37 — 45.5% -0.14 2–2 (50%) 0–1 — +0.26
18 2003 1489 100.3 — — — — — — — 33.3% -2.33 0–1 1–0 — +0.02 2000 1524 108.3 — — — — +37 +30 — 42.0% -0.68 3–1 (75%) 3–1 (75%) 105.1 +0.85
19 2004 1473 96.4 -3.43 -1.30 0.865 46.6% — — — 0.0% -2.50 — — — -0.14 2001 1560 116.2 — — — — — +73 — 47.1% +0.18 1–2 (33%) 2–1 (67%) 101.0 -0.13
20 2005 1475 101.7 -1.70 -1.14 0.860 46.6% +3 — — 42.9% -1.14 0–1 0–1 — -0.05 2002 1571 111.3 — — — — -20 +34 — 42.5% -0.31 8–3 (73%) 2–5 (29%) 105.9 +0.28
21 2006 1501 113.4 -0.08 -1.23 0.504 37.7% -2 — — 37.5% -1.00 2–0 1–1 — -0.22 2003 1622 120.1 -1.74 -2.49 0.739 43.5% -56 +59 — 45.1% -0.46 5–5 (50%) 3–6 (33%) 97.7 -0.06
22 2007 1502 122.1 -1.56 -0.63 0.973 49.3% +17 — +91 43.2% -0.18 1–7 (13%) — — -0.01 2004 1666 129.7 -1.40 -1.09 0.823 45.7% -81 +96 — 45.4% -0.19 9–7 (56%) 6–5 (55%) 105.6 -0.69
23 2008 1630 126.8 -0.29 +1.02 1.014 50.2% +9 -98 -24 47.5% -0.18 8–6 (57%) 2–5 (29%) 103.0 +0.09 2005 1547 120.0 -0.58 -1.27 0.864 46.7% -47 +195 — 37.0% -0.73 4–5 (44%) 3–3 (50%) 99.4 +0.09
24 2009 1598 101.9 -2.95 -1.13 0.664 40.6% +4 — — 0.0% -3.67 — 0–1 — -0.17 2006 1577 119.3 -2.62 -2.72 0.804 45.9% +30 — -175 50.6% -0.05 6–5 (55%) 3–2 (60%) 100.9 +1.44
25 2010 1563 103.6 -3.53 -0.93 0.814 45.4% +23 — — 31.3% -1.50 1–1 2–2 (50%) — +0.55 2007 1534 105.5 -0.32 -3.82 0.871 47.4% +40 +66 — 38.6% -1.12 3–2 (60%) 0–2 — -0.47
26 2011 1541 104.0 -1.59 -2.06 0.982 49.7% — -17 — 42.1% -0.26 1–2 (33%) 1–0 — +0.43 2008 1513 110.2 +2.02 -2.68 0.696 44.8% — +50 — 22.2% -1.78 1–0 2–0 — -0.46
27 2012 1593 122.1 -1.70 -0.55 0.901 47.8% -3 — +45 42.3% -0.52 4–2 (67%) 0–2 — -0.51 — — — — — — — — — — — — — — — —
28 2013 1490 95.2 -2.07 -4.32 0.712 44.0% +4 — — 15.8% -2.16 0–1 0–2 — +1.12 2010 1472 103.1 -1.62 -2.01 0.660 40.8% — — — 0.0% -3.25 — — — -0.15
29 2014 1742 139.6 +0.67 +0.45 1.011 50.3% -28 -176 -39 55.2% +0.23 13–6 (68%) 4–5 (44%) 108.7 +0.21 — — — — — — — — — — — — — — — —
30 2015 1629 117.9 -0.10 -0.71 0.929 48.4% -22 -90 +90 43.1% -0.65 1–7 (13%) 3–3 (50%) 93.4 -0.22 — — — — — — — — — — — — — — — —
31 2016 1613 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1758 127.4 -0.70 -0.33 0.939 48.7% -5 -99 +29 43.8% -0.46 31–34 (48%) 14–22 (39%) 100.0 +0.60 — 1710 121.9 -0.96 -2.67 0.809 45.8% -15 +80 -175 42.8% -0.47 42–33 (56%) 24–27 (47%) 105.1 +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.