WTAHardOsaka2026-10-23 07:30

Mary Stoiana v Katerina Siniakova

The market

No published price yet

Percentages are the implied chance of winning with the bookmaker's margin removed.

Recent form

M. StoianaWWWWL

K. SiniakovaWWLLW

Last five completed matches, most recent first.

Head to head

First career meetingNo previous matches between these two on record.

This season & this event

M. Stoiana

K. Siniakova

46-26

24-15

Did not play

2026 record

2026 on hard

Here in 2025

Here in 2024

20-19

17-14

Did not play

Ranking points fall off a year after they are earned, so a player who went deep here last year must match it or drop in the rankings. That shapes effort in a way the price does not always show.

The players

Mary Stoiana

USA

Katerina Siniakova

Czech Republic

122

USA

39–23

18–13

13–6

8–4

Ranking

Age

Country

2026 W/L

Titles

Hard

Clay

Grass

Czech Republic

10–8

7–7

3–1

—

Ranking, record and surface splits are for the most recent season on file. Height, weight and handedness are not published by our data provider.

M. Stoiana — last 10

With the pre-match price we recorded at the time.

Date	Event	Surface	Opponent	Their price	Market	Result
2026-10-21	Osaka	Hard	M. Uchijima	1.65	59%	WON
Games in each set6-2 2-6 6-3 StoianaUchijimaPoints won51%49%Serve points won60%59%Return points won41%40%Games held10 of 138 of 12Break points saved4 of 76 of 10Aces02Double faults31
2026-10-20	Osaka	Hard	O. Oliynykova	1.41	69%	WON
Games in each set6-2 6-3 StoianaOliynykovaPoints won56%44%Serve points won43%38%Return points won62%57%Games held3 of 80 of 9Break points saved0 of 511 of 20Aces02Double faults26
2026-10-18	Osaka	Hard	S. Ishii	1.11	86%	WON
Games in each set6-4 7-5 StoianaIshiiPoints won53%47%Serve points won51%46%Return points won54%49%Games held6 of 114 of 11Break points saved5 of 103 of 10Aces11Double faults37
2026-10-17	Osaka	Hard	R. Matsuda	1.10	87%	WON
Games in each set6-3 7-6 StoianaMatsudaPoints won55%45%Serve points won60%50%Return points won50%40%Games held7 of 115 of 10Break points saved0 of 44 of 9Aces12Double faults50
2026-10-01	W100 Templeton	Hard	J. Pareja	1.67	55%	LOST
Games in each set5-7 5-7 StoianaParejaPoints won47%53%Serve points won46%53%Return points won47%54%Games held5 of 127 of 12Break points saved8 of 158 of 13
2026-09-30	W100 Templeton	Hard	H. Chang	1.18	81%	WON
Games in each set6-3 6-4 StoianaChangPoints won55%45%Serve points won63%52%Return points won48%37%Games held8 of 105 of 9Break points saved7 of 95 of 9
2026-09-18	Sao Paulo	Clay	P. Badosa	2.95	68%	LOST
Games in each set4-6 2-6 StoianaBadosaPoints won42%58%Serve points won44%61%Return points won39%56%Games held4 of 97 of 9Break points saved5 of 103 of 5Aces02Double faults55
2026-09-16	Sao Paulo	Clay	D. Salkova	1.50	64%	WON
Games in each set7-6 6-1 StoianaSalkovaPoints won57%43%Serve points won58%45%Return points won55%42%Games held6 of 94 of 10Break points saved1 of 45 of 11Aces10Double faults23
2026-09-14	Sao Paulo	Clay	C. Liu	2.11	54%	WON
Games in each set6-3 7-5 StoianaLiuPoints won55%45%Serve points won55%45%Return points won55%45%Games held7 of 114 of 10Break points saved7 of 117 of 13Aces03Double faults48
2026-09-09	Barranquilla	Hard	J. Riera	1.33	71%	LOST
Games in each set6-4 6-7 3-6 StoianaRieraPoints won49%51%Serve points won55%57%Return points won43%45%Games held10 of 1511 of 16Break points saved6 of 118 of 13Aces22Double faults56

K. Siniakova — last 10

With the pre-match price we recorded at the time.

Date	Event	Surface	Opponent	Score	Their price	Market	Result
2026-10-22	Osaka	Hard	M. Linette		1.52	64%	WON
Games in each set6-4 6-1 SiniakovaLinettePoints won59%41%Serve points won61%43%Return points won57%39%Games held6 of 83 of 9Break points saved3 of 55 of 11Aces24Double faults32
2026-10-19	Osaka	Hard	P. Stearns	RET	1.72	57%	WON
Games in each set6-4 0-6 4-0 SiniakovaStearnsPoints won51%49%Serve points won59%58%Return points won42%41%Games held7 of 107 of 10Break points saved2 of 53 of 6Aces31Double faults51
2026-10-12	Wuhan	Hard	L. Samsonova		2.01	52%	LOST
Games in each set1-6 7-5 2-6 SiniakovaSamsonovaPoints won45%55%Serve points won60%67%Return points won33%40%Games held8 of 1312 of 14Break points saved4 of 95 of 7Aces11Double faults46
2026-10-02	Beijing	Hard	E. Svitolina		3.97	75%	LOST
Games in each set6-1 4-6 2-6 SiniakovaSvitolinaPoints won50%50%Serve points won54%55%Return points won45%46%Games held8 of 138 of 12Break points saved9 of 147 of 11Aces62Double faults32
2026-09-30	Beijing	Hard	M. Linette		1.49	65%	WON
Games in each set6-4 6-3 SiniakovaLinettePoints won54%46%Serve points won58%49%Return points won51%42%Games held6 of 94 of 10Break points saved6 of 93 of 9Aces13Double faults71
2026-09-02	US Open	Hard	N. Osaka		4.04	76%	LOST
Games in each set2-6 7-5 1-6 SiniakovaOsakaPoints won44%56%Serve points won50%61%Return points won39%50%Games held7 of 1311 of 14Break points saved4 of 105 of 8Aces311Double faults75
2026-09-01	US Open	Hard	E. Cocciaretto		1.54	63%	WON
Games in each set6-3 6-2 SiniakovaCocciarettoPoints won61%39%Serve points won72%50%Return points won50%28%Games held8 of 94 of 8Break points saved1 of 21 of 5Aces10Double faults65
2026-08-18	Cincinnati	Hard	M. Keys		4.23	77%	LOST
Games in each set1-6 3-6 SiniakovaKeysPoints won38%62%Serve points won47%74%Return points won26%53%Games held4 of 88 of 8Break points saved5 of 93 of 3Aces02Double faults53
2026-08-16	Cincinnati	Hard	J. Bouzas Maneiro		1.98	51%	WON
Games in each set6-7 6-1 6-1 SiniakovaManeiroPoints won55%45%Serve points won56%45%Return points won55%44%Games held8 of 133 of 13Break points saved4 of 94 of 14Aces30Double faults137
2026-08-04	Toronto	Hard	K. Rakhimova	RET	1.53	63%	LOST
Games in each set7-6 0-6 2-5 SiniakovaRakhimovaPoints won46%54%Serve points won44%53%Return points won47%56%Games held4 of 138 of 12Break points saved4 of 133 of 7Aces22Double faults76

Also at this event

Gibson v Krueger Boulter v Ruzic Li v Tagger