2024 International Challenger Zhangjiagang – Singles

Térence Atmane was the defending champion^[1] but chose not to defend his title.

Singles
2024 International Challenger Zhangjiagang
Champion	Yasutaka Uchiyama
Runner-up	Mark Lajal
Score	6–7(4–7), 6–2, 6–2

Main article: 2024 International Challenger Zhangjiagang

Yasutaka Uchiyama won the title after defeating Mark Lajal 6–7^(4–7), 6–2, 6–2 in the final.^[2]

Seeds

1. Coleman Wong (second round)
2. Hong Seong-chan (semifinals, retired)
3. Hsu Yu-hsiou (first round)
4. Yasutaka Uchiyama (champion)
5. Marc Polmans (first round)
6. Beibit Zhukayev (second round)
7. Mark Lajal (final)
8. Egor Gerasimov (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	Q	Norbert Gombos	3	4
	7	Mark Lajal	6	6
								7	Mark Lajal	77	2	2
								4	Yasutaka Uchiyama	64	6	6
	4	Yasutaka Uchiyama	6	66	4
	2	Hong Seong-chan	3	78	0r

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	C Wong	6	5	6
	Q	E Agafonov	3	7	4			1	C Wong	2	63
	Q	N Gombos	7	5	6			Q	N Gombos	6	77
	WC	Y Wu	5	7	1										Q	N Gombos	w/o
		T Lamasine	2	62												D Svrčina
		D Svrčina	6	77					D Svrčina	6	6
	Q	Y Takahashi	7	6				Q	Y Takahashi	2	1
	5	M Polmans	5	3																		Q	N Gombos	3	4
	3	Y-h Hsu	4	4																		7	M Lajal	6	6
		J Cui	6	6					J Cui	6	3	1
		R Noguchi	6	6					R Noguchi	0	6	6
		Mikalai Haliak	3	3												R Noguchi	4	2
	Q	Kris van Wyk	4	4											7	M Lajal	6	6
		R Peniston	6	6					R Peniston	2	2
	Alt	P Henning	6	5	65			7	M Lajal	6	6
	7	M Lajal	4	7	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	B Zhukayev	7	7
	Q	Lukáš Pokorný	5	5				6	B Zhukayev	7	2	5
	WC	Y Zhou	2	1					T-l Wu	5	6	7
		T-l Wu	6	6												T-l Wu	77	3	4
		Vadym Ursu	6	7											4	Y Uchiyama	65	6	6
	Q	A Rai	2	5					V Ursu	2	1
		Y Shimizu	2	0r				4	Y Uchiyama	6	6
	4	Y Uchiyama	6	1																		4	Y Uchiyama	6	66	4
	8	E Gerasimov	65	3																		2	S-c Hong	3	78	0r
	WC	S Tang	77	6				WC	S Tang	4	4
		K Uchida	3	77	0				F Sun	6	6
		F Sun	6	65	6											F Sun	7	2	2
		Y Bai	6	1	6										2	S-c Hong	5	6	6
		B Mott	4	6	3				Y Bai	2	1
	LL	E Donskoy	6	61	2			2	S-c Hong	6	6
	2	S-c Hong	4	77	6