2018 International Challenger Zhangjiagang – Singles

Singles
2018 International Challenger Zhangjiagang
Champion	Yasutaka Uchiyama
Runner-up	Jason Jung
Score	6–2, 6–2

Main article: 2018 International Challenger Zhangjiagang

Jason Jung was the defending champion but lost in the final to Yasutaka Uchiyama.

Uchiyama won the title after defeating Jung 6–2, 6–2 in the final.

Seeds

1. Jason Jung (final)
2. Tatsuma Ito (second round)
3. Zhang Ze (first round)
4. Go Soeda (second round)
5. Filip Peliwo (first round)
6. Miomir Kecmanović (semifinals)
7. Hiroki Moriya (second round)
8. Alexander Bublik (semifinals)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1	Jason Jung	7^7	6^5	6
	8	Alexander Bublik	6^3	7^7	0
								1	Jason Jung	2	2
									Yasutaka Uchiyama	6	6
		Yasutaka Uchiyama	6	4	7
	6	Miomir Kecmanović	3	6	5

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Jung	6	6
	Q	Y Shimizu	4	3				1	J Jung	6	6
		Z Li	0	6	3			WC	Zh Zhang	4	4
	WC	Zh Zhang	6	1	6										1	J Jung	7	6
		T-h Yang	4	1^r												A Santillan	5	2
		A Santillan	6	3					A Santillan	7	6^4	6
	WC	R Te	6	6				WC	R Te	5	7^7	4
	5	F Peliwo	4	4																		1	J Jung	7^7	6^5	6
	4	G Soeda	7	7																		8	A Bublik	6^3	7^7	0
		A Bega	5	5				4	G Soeda	5	6	2
		Y-s Chung	3	6	6				Y-s Chung	7	3	6
		R Safiullin	6	4	3											Y-s Chung	4	4
	Q	D Kelly	7^7	7											8	A Bublik	6	6
		S-w Kwon	6^5	5				Q	D Kelly	5	4
	LL	Y Takahashi	3	4				8	A Bublik	7	6
	8	A Bublik	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	H Moriya	7^8	6
	Q	T Lamasine	6^6	2				7	H Moriya	6	6^5	3
		Y Uchiyama	6	4					Y Uchiyama	4	7^7	6
		B Kavčič	3	2^r												Y Uchiyama	6	6
		U Ignatik	6	7^7												U Ignatik	4	3
		A Šetkić	2	6^3					U Ignatik	7^8	6
		D-h Lee	6	5	6				D-h Lee	6^6	1
	3	Ze Zhang	3	7	0																		Y Uchiyama	6	4	7
	6	M Kecmanović	6	3	6																	6	M Kecmanović	3	6	5
		M Purcell	3	6	3			6	M Kecmanović	2	6	6
	Q	F Ferreira Silva	4	4					J Rodionov	6	3	3
		J Rodionov	6	6											6	M Kecmanović	6	6
	WC	Y Wu	6	6											WC	Y Wu	4	4
	WC	Y He	3	4				WC	Y Wu	7^8	4	6
		S Diez	4	1				2	T Ito	6^6	6	3
	2	T Ito	6	6

References

• Main Draw
• Qualifying Draw