Sofia Costoulas vs Madison Sieg Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Costoulas vs M. Sieg
Sofia Costoulas
BEL
l
w
w
w
l
w
w
l
l
l
0
Win
0
Played
0
Win
20
Age
22
-
Height
-
150
C. Rank
436
149
Best Rank
294
0
Total Titles
0
0
YTD Titles
0
$43.0K
Career Money
$0
-
Plays
-
Madison Sieg
USA
l
w
w
l
l
w
w
l
w
l
0
Win
0
Played
0
Win
20
Age
22
-
Height
-
150
C. Rank
436
149
Best Rank
294
0
Total Titles
0
0
YTD Titles
0
$43.0K
Career Money
$0
-
Plays
-
Head-to-head: Costoulas 0 - 0 Sieg
| Players | Head To Head Match Wins |
|---|---|
| Costoulas | 0 |
| Sieg | 0 |
Last 0 H2H Matches:
No past h2h happened.
S. Costoulas vs M. Sieg H2H Profile
| Stats | ||
|---|---|---|
| $43,000 | Career Prize Money | $0 |
| 60.55% (175-114) | Career Total W/L | 53.28% (122-107) |
| 4 | Titles | 2 |
| 50.00% (1-1) | YTD Win/Loss | 0% (0-0) |
S. Costoulas vs M. Sieg Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Sofia Costoulas has won 40.76% of points on their second serve, while Madison Sieg has won 39.97%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Sofia Costoulas, in recent form, has won 48.58% of their opponent's second serve points, while Madison Sieg has won 48.88%. The same stats for first serve returns are 30.98% and 35.02% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Sofia Costoulas has saved 49.57% of breakpoints in recent form, whereas Madison Sieg has saved 47.28% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Sofia Costoulas has won 65.88% of matches played (W/L 56/29), with Madison Sieg winning 47.17% (W/L 25/28) that gives us an overall head-to head prediction overview.
- Best surface: Sofia Costoulas has their best career surface win % on Hard, winning 65% (W/L 93/50), and worse career win % on Grass, winning 0% (W/L 0/1). Madison Sieg has their best career surface win % on Clay, winning 65% (W/L 43/37), and worse career win % on I.hard, winning 52% (W/L 11/10).
- Player level: In the last year, Sofia Costoulas has played most of their matches on the Challengers/ITF tournaments > $10K, winning 68.35% of matches (W/L 54/25), where as Madison Sieg has played most of their matches on the Challengers/ITF tournaments > $10K, winning 47.17% of matches (W/L 25/28). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
- Opponent quality stats: Over the last 12 months, Sofia Costoulas has played against opponents with an average rank of 339.88 while Madison Sieg has played against players with an average rank of 385.3.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Sofia Costoulas has won 67% of deciding sets over the last 12 months, while Madison Sieg has won 50% in all matches played on tour.
- Break point conversion: In recent form, Sofia Costoulas has converted 38.29% of breakpoint opportunities, and Madison Sieg has converted 44.83% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Sofia Costoulas vs Madison Sieg Editorial Preview By TennisTipster88.
Recent Performance Stats
2nd Serve Win %: Costoulas 48%, Sieg 43%.
Opp 2nd Serve Pts Won: Costoulas 57%, Sieg 53%.
Break Points Saved %: Costoulas 60%, Sieg 49%.
S. Costoulas Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 W50 Trnava - 17-11-2025 | ||||
R1  Mia RisticM. Ristic | L | 4-6 6-3 7-6(8) | ||
| Billie Jean King Cup, PO, Group F - 10-11-2025 | ||||
Rubber 1  Ayla AksuA. Aksu | L | 6-3 6-1 | ||
| W75 Glasgow - 27-10-2025 | ||||
QF  Kajsa Rinaldo PerssonK. Rinaldo | L | 7-5 4-6 7-6(5) | ||
R2  Julia AvdeevaJ. Avdeeva | W | 6-1 6-4 | ||
R1  Matilde JorgeM. Jorge | W | 6-2 4-6 6-2 | ||
M. Sieg Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 W50 Austin - 10-11-2025 | ||||
R2 Anastasia GasanovaA. Gasanova | L | 6-2 6-2 | ||
R1 Alana SmithA. Smith | W | 6-2 2-6 6-4 | ||
 W35 Orlando - 03-11-2025 | ||||
QF  Eva VedderE. Vedder | L | 6-1 6-3 | ||
R2  Emily SeiboldE. Seibold | W | 6-3 6-1 | ||
R1 Bella PayneB. Payne | W | 7-5 7-6(3) | ||
S. Costoulas vs M. Sieg Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 60.55% (175/114) | YTD Win/Loss | 53.28% (122/107) |
| 58.74% (393/276) | Sets Win/Loss | 51.45% (266/251) |
| 53.99% (3277/2793) | Games Win/Loss | 50.32% (2337/2307) |
| 65.03% (93/50) | Hard Win/Loss | 53.13% (68/60) |
| 53.85% (49/42) | Clay Win/Loss | 53.75% (43/37) |
| 61.11% (33/21) | Indoor Hard W/L | 52.38% (11/10) |
| 0.00% (0/1) | Grass Win/Loss | 0% (0/0) |
| 0.26 | Aces Per Game | 0.11 |
| 780 | Aces Total | 256 |
| 0.2 | Double Faults Per Game | 0.34 |
| 589 | Total Double Faults | 780 |
| 1:48:29 | Average Match Time | 1:43:17 |
| 445.18 | Average Opponent Rank | 453.81 |
| 61% (11715/19169) | 1st Serve % | 63% (8881/14143) |
| 64% (7511/11715) | 1st Serve Win % | 59% (5268/8881) |
| 47% (3537/7454) | 2nd Serve Win % | 45% (2356/5262) |
| 48% (1181/2457) | Break Points Won % (Total) | 48% (898/1858) |
| 46% (8970/19622) | Return Points Win % | 46% (6674/14458) |
| 25.00% (1/3) | Slam W/L | 0% (0/0) |
| 50.00% (2/2) | Cups W/L | 0% (0/0) |
| 0% (0/0) | Main Tour W/L | 0.00% (0/2) |
| 60.98% (150/96) | Challenger W/L | 51.28% (100/95) |
| 62.86% (22/13) | Futures W/L | 68.75% (22/10) |
| 61% (175/286) | Best of 3 Sets Win % | 53% (119/224) |
| 0% (0/0) | Best of 5 Sets Win % | 0% (0/2) |
| 56% (30/54) | Tiebreaks Win % (Total) | 57% (20/35) |
| 54% (51/94) | Deciding Set Win % | 62% (37/60) |
| 86% (170/146) | 1st Set Won, Won Match | 90% (116/104) |
| 14% (170/23) | 1st Set Won, Lost Match | 10% (116/12) |
| 24% (119/29) | 1st Set Lost, Won Match | 16% (113/18) |
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