ChallengerHard (Indoor)Sioux Falls2026-10-25 17:30

Daniil Ostapenkov v Quinn Vandecasteele

The market

No published price yet

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

Recent form

D. OstapenkovLLWWW

Q. VandecasteeleLLWLW

Last five completed matches, most recent first.

Head to head

D. Ostapenkov2

Q. Vandecasteele0

Head to head2 meetings

Date	Event	Match	Score
2026-09-28	Columbus	Q. VandecasteelevD. Ostapenkov	2-6 6-7
2026-09-20	San Diego 2 (Usa) - Qualification	D. OstapenkovvQ. Vandecasteele	7-5 4-6 6-3

This season & this event

D. Ostapenkov

Q. Vandecasteele

33-21

32-19

Did not play

2026 record

2026 on hard

Here in 2025

Here in 2024

36-29

28-21

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

Daniil Ostapenkov

World

Quinn Vandecasteele

USA

737

World

2–1

—

Ranking

Age

Country

2026 W/L

Titles

Hard

Clay

Grass

459

USA

20–11

18–8

2–3

—

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

D. Ostapenkov — last 10

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

Date	Event	Surface	Opponent	Score	Their price	Market	Result
2026-10-18	Fort Worth (Usa) - Qualification, Hard	—	A. Pedrico Kravtsov		1.67	57%	LOST
Games in each set6-7 5-7 OstapenkovKravtsovPoints won45%55%Serve points won58%70%Return points won30%42%Games held9 of 1210 of 12Break points saved8 of 115 of 7Aces42Double faults31
2026-09-30	Columbus	Hard (Indoor)	A. Shelbayh		3.20	71%	LOST
Games in each set1-6 5-7 OstapenkovShelbayhPoints won42%58%Serve points won47%65%Return points won35%53%Games held4 of 107 of 9Break points saved2 of 82 of 4Aces44Double faults51
2026-09-29	Columbus	Hard (Indoor)	R. Perot		2.90	68%	WON
Games in each set1-6 6-3 6-4 OstapenkovPerotPoints won50%50%Serve points won50%49%Return points won51%50%Games held6 of 136 of 13Break points saved9 of 163 of 10Aces24Double faults95
2026-09-28	Columbus	Hard (Indoor)	I. Palavestra		—	—	WON
Games in each set7-6 6-1 OstapenkovPalavestraPoints won55%45%Serve points won58%48%Return points won52%42%Games held7 of 104 of 9Break points saved8 of 112 of 7Aces52Double faults35
2026-09-28	Columbus	Hard (Indoor)	Q. Vandecasteele		2.64	64%	WON
Games in each set6-2 7-6 OstapenkovVandecasteelePoints won54%46%Serve points won62%56%Return points won44%38%Games held9 of 107 of 10Break points saved6 of 74 of 7Aces16Double faults24
2026-09-21	San Diego 2 (Usa) - Qualification	Hard	T. Legout		3.84	75%	LOST
Games in each set3-6 1-6 OstapenkovLegoutPoints won41%59%Serve points won39%57%Return points won43%61%Games held1 of 85 of 8Break points saved3 of 103 of 6Aces20Double faults72
2026-09-20	San Diego 2 (Usa) - Qualification, Hard	—	Q. Vandecasteele		3.41	72%	WON
Games in each set7-5 4-6 6-3 OstapenkovVandecasteelePoints won53%47%Serve points won67%60%Return points won40%33%Games held12 of 1511 of 16Break points saved1 of 43 of 8Aces210Double faults34
2026-09-14	Tiburon	Hard	G. Grumet		1.22	78%	WON
Games in each set6-2 6-2 OstapenkovGrumetPoints won63%37%Serve points won78%51%Return points won49%22%Games held8 of 84 of 8Break points saved0 of 03 of 7Aces10Double faults35
2026-09-14	Tiburon	Hard	T. Legout		3.46	72%	LOST
Games in each set3-6 4-6 OstapenkovLegoutPoints won42%58%Serve points won58%73%Return points won27%42%Games held6 of 99 of 10Break points saved2 of 52 of 3Aces30Double faults13
2026-08-09	Astana	Hard	E. Agafonov	RET	1.32	72%	LOST
Games in each set1-3 OstapenkovAgafonovPoints won43%57%Serve points won50%59%Return points won41%50%Games held1 of 22 of 2Break points saved1 of 25 of 5Aces04Double faults12

Q. Vandecasteele — last 10

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

Date	Event	Surface	Opponent	Their price	Market	Result
2026-10-18	Fort Worth (Usa) - Qualification, Hard	—	M. Antonius	1.96	52%	LOST
Games in each set6-4 2-6 3-6 VandecasteeleAntoniusPoints won45%55%Serve points won55%64%Return points won36%45%Games held8 of 1311 of 14Break points saved4 of 93 of 6Aces30Double faults52
2026-10-15	M25 Austin, TX	Hard	S. Gorzny	2.94	68%	LOST
Games in each set5-7 4-6 VandecasteeleGorznyPoints won47%53%Serve points won58%62%Return points won38%42%Games held6 of 118 of 11Break points saved4 of 94 of 7
2026-10-14	M25 Austin, TX	Hard	A. Shah	1.68	57%	WON
Games in each set7-6 6-3 VandecasteeleShahPoints won54%46%Serve points won65%54%Return points won46%35%Games held8 of 107 of 12Break points saved2 of 412 of 16
2026-09-28	Columbus	Hard (Indoor)	D. Ostapenkov	1.48	64%	LOST
Games in each set2-6 6-7 VandecasteeleOstapenkovPoints won46%54%Serve points won56%62%Return points won38%44%Games held7 of 109 of 10Break points saved4 of 76 of 7Aces61Double faults42
2026-09-27	Columbus	Hard (Indoor)	P. Stearns	—	—	WON
Games in each set6-2 4-6 6-2 VandecasteeleStearnsPoints won55%45%Serve points won69%57%Return points won43%31%Games held12 of 139 of 13Break points saved2 of 36 of 10Aces143Double faults48
2026-09-20	San Diego 2 (Usa) - Qualification, Hard	—	D. Ostapenkov	1.31	72%	LOST
Games in each set5-7 6-4 3-6 VandecasteeleOstapenkovPoints won47%53%Serve points won60%67%Return points won33%40%Games held11 of 1612 of 15Break points saved3 of 81 of 4Aces102Double faults43
2026-09-14	Tiburon	Hard	B. Nakashima	1.77	54%	LOST
Games in each set2-6 4-6 VandecasteeleNakashimaPoints won45%55%Serve points won51%62%Return points won38%49%Games held4 of 97 of 9Break points saved10 of 153 of 5Aces63Double faults24
2026-09-13	Tiburon	Hard	N. Zamora	1.36	68%	WON
Games in each set6-1 7-5 VandecasteeleZamoraPoints won59%41%Serve points won70%51%Return points won49%30%Games held9 of 105 of 9Break points saved2 of 33 of 7Aces42Double faults62
2026-08-24	Winston-Salem	Hard	J. Duckworth	3.52	72%	LOST
Games in each set2-6 1-6 VandecasteeleDuckworthPoints won39%61%Serve points won45%67%Return points won33%55%Games held2 of 77 of 8Break points saved7 of 121 of 2Aces14Double faults36
2026-08-23	Winston-Salem	Hard	P. Herbert	2.31	58%	WON
Games in each set3-6 7-6 7-5 VandecasteeleHerbertPoints won50%50%Serve points won61%59%Return points won41%39%Games held12 of 1712 of 16Break points saved4 of 98 of 12Aces51Double faults715

Common questions

What is the head-to-head between Daniil Ostapenkov and Quinn Vandecasteele?

They have met 2 times and Daniil Ostapenkov leads 2-0.

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