ChallengerHardFort Worth (Usa)2026-10-22 17:00

John Wolf Jeffrey v Sander Jong

The market

No published price yet

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

Recent form

J.J. WolfWLLLW

S. JongWWWLW

Last five completed matches, most recent first.

Head to head

First career meetingNo previous matches between these two on record.

This season & this event

J.J. Wolf

S. Jong

27-12

19-8

Did not play

2026 record

2026 on hard

Here in 2025

Here in 2024

41-19

9-4

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.

No previous edition of this event found in the feed.

The players

John Jeffrey Wolf

USA

Sander Jong

Netherlands

219

USA

26–11

18–7

8–4

—

Ranking

Age

Country

2026 W/L

Titles

Hard

Clay

Grass

—

Netherlands

2–2

—

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

J.J. Wolf — last 10

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

Date	Event	Surface	Opponent	Their price	Market	Result
2026-10-19	Fort Worth (Usa)	Hard	T. Zink	1.21	79%	WON
Games in each set6-4 6-3 WolfZinkPoints won56%44%Serve points won76%60%Return points won40%24%Games held9 of 97 of 10Break points saved0 of 02 of 5Aces710Double faults62
2026-09-29	Columbus	Hard (Indoor)	D. Dietrich	1.62	58%	LOST
Games in each set6-7 3-6 WolfDietrichPoints won47%53%Serve points won66%69%Return points won31%34%Games held9 of 1011 of 11Break points saved1 of 22 of 2Aces411Double faults52
2026-09-21	San Diego 2 (Usa) - Qualification	Hard	Dar. Blanch	1.64	58%	LOST
Games in each set6-4 6-7 1-6 WolfBlanchPoints won53%47%Serve points won67%59%Return points won41%33%Games held10 of 1412 of 15Break points saved3 of 73 of 6Aces46Double faults35
2026-09-20	Tiburon	Hard	M. Mmoh	1.65	59%	LOST
Games in each set2-6 2-6 WolfMmohPoints won40%60%Serve points won44%64%Return points won36%56%Games held3 of 87 of 8Break points saved1 of 62 of 3Aces25Double faults35
2026-09-18	Tiburon	Hard	S. Gorzny	1.40	67%	WON
Games in each set7-6 1-6 7-5 WolfGorznyPoints won50%50%Serve points won63%63%Return points won37%37%Games held12 of 1613 of 15Break points saved5 of 912 of 14Aces1215Double faults15
2026-09-16	Tiburon	Hard	B. Shick	1.28	74%	WON
Games in each set6-4 6-7 6-4 WolfShickPoints won52%48%Serve points won66%63%Return points won37%34%Games held15 of 1613 of 16Break points saved5 of 69 of 12Aces63Double faults23
2026-09-14	Tiburon	Hard	L. E. Ambrogi	1.05	92%	WON
Games in each set6-2 6-0 WolfAmbrogiPoints won70%30%Serve points won78%37%Return points won63%22%Games held7 of 72 of 7Break points saved0 of 02 of 7Aces53Double faults10
2026-08-31	US Open	Hard	A. Bublik	2.95	67%	LOST
Games in each set4-6 2-6 6-3 1-6 WolfBublikPoints won43%57%Serve points won55%70%Return points won30%45%Games held10 of 1714 of 17Break points saved1 of 85 of 8Aces418Double faults310
2026-08-14	Cincinnati	Hard	J. Duckworth	1.65	59%	LOST
Games in each set5-7 6-7 WolfDuckworthPoints won44%56%Serve points won57%75%Return points won25%43%Games held10 of 1211 of 12Break points saved5 of 73 of 4Aces57Double faults33
2026-08-13	Cincinnati	Hard	S. Shimabukuro	1.76	55%	WON
Games in each set6-3 3-6 7-5 WolfShimabukuroPoints won53%47%Serve points won62%56%Return points won44%38%Games held11 of 1510 of 15Break points saved4 of 86 of 11Aces53Double faults44

S. Jong — last 10

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

Date	Event	Surface	Opponent	Score	Their price	Market	Result
2026-10-20	Fort Worth (Usa)	Hard	L. Maxted		2.06	54%	WON
Games in each set7-6 6-4 JongMaxtedPoints won52%48%Serve points won67%61%Return points won39%33%Games held10 of 119 of 11Break points saved5 of 66 of 8Aces40Double faults31
2026-10-19	Fort Worth (Usa)	Hard	K. Miyoshi		2.26	58%	WON
Games in each set4-6 7-6 7-5 JongMiyoshiPoints won52%48%Serve points won62%57%Return points won43%38%Games held12 of 1712 of 17Break points saved3 of 810 of 15Aces63Double faults51
2026-10-18	Fort Worth (Usa) - Qualification, Hard	—	K. Rice		1.80	53%	WON
Games in each set3-6 7-6 6-2 JongRicePoints won52%48%Serve points won58%53%Return points won47%42%Games held10 of 1410 of 15Break points saved7 of 117 of 12Aces51Double faults46
2026-10-03	M25 Zaragoza	Clay	A. Moro Canas		2.53	64%	LOST
Games in each set6-4 4-6 4-6 JongCanasPoints won50%50%Serve points won64%63%Return points won37%36%Games held11 of 1512 of 15Break points saved5 of 911 of 14
2026-10-02	M25 Zaragoza	Clay	L. Carboni		1.52	62%	WON
Games in each set6-3 6-1 JongCarboniPoints won62%38%Serve points won70%45%Return points won55%30%Games held8 of 93 of 8Break points saved3 of 44 of 9
2026-10-01	M25 Zaragoza	Clay	M. De Krom		1.15	83%	WON
Games in each set3-6 6-3 6-3 JongKromPoints won52%48%Serve points won69%62%Return points won38%31%Games held12 of 1311 of 14Break points saved3 of 49 of 12
2026-09-29	M25 Zaragoza	Clay	R. Perez Socas		1.07	90%	WON
Games in each set6-0 6-1 JongSocasPoints won71%29%Serve points won85%40%Return points won60%15%Games held7 of 71 of 6Break points saved0 of 03 of 8
2026-09-27	M25 Sabadell 2	Clay	G. Campana Lee		1.65	57%	LOST
Games in each set3-6 2-6 JongLeePoints won40%60%Serve points won35%53%Return points won47%65%Games held1 of 86 of 9Break points saved2 of 94 of 7
2026-09-26	M25 Sabadell 2	Clay	L. Marmousez	RET	1.91	51%	WON
Games in each set3-0 JongMarmousezPoints won68%32%Serve points won73%38%Return points won62%27%Games held2 of 20 of 1Break points saved0 of 01 of 2
2026-09-25	M25 Sabadell 2	Clay	I. Xilas		1.33	70%	WON
Games in each set4-6 6-4 6-1 JongXilasPoints won55%45%Serve points won59%52%Return points won48%41%Games held10 of 147 of 13Break points saved13 of 175 of 11

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