Singles
2018 Gwangju Open
Champion	Maverick Banes
Runner-up	Nam Ji-sung
Score	6–3, 4–6, 6–4

Matthias Bachinger was the defending champion but chose not to defend his title.

Maverick Banes won the title after defeating Nam Ji-sung 6–3, 4–6, 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	6	Maverick Banes	6	6
		Makoto Ochi	4	4
								6	Maverick Banes	6	4	6
								Q	Nam Ji-sung	3	6	4
	3	Alexander Bublik	67	5
	Q	Nam Ji-sung	79	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/Alt	M Granollers	4	3
		A Popyrin	6	6					A Popyrin	77	77
		B Mousley	6	6					B Mousley	65	62
	Q	Son Ji-hoon	3	2												A Popyrin	4	3
	WC	Kim Cheong-eui	5	77	2										6	M Banes	6	6
	Q	Sidharth Rawat	7	65	6			Q	S Rawat	3	3
	WC	Sin Dong-hak	2	1				6	M Banes	6	6
	6	M Banes	6	6																		6	M Banes	6	6
	4	D-h Lee	77	6																			M Ochi	4	4
	WC	Ho Chung	64	2				4	D-h Lee	6	6
	WC	Jeong Yeong-seok	4	0					R Statham	4	3
		R Statham	6	6											4	D-h Lee	2	1
		L Catarina	3	2												M Ochi	6	6
		Makoto Ochi	6	6					M Ochi	7	6
		B Ellis	6	0					B Ellis	5	1
	7	U Blanch	3	1r

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	Renta Tokuda	3	6	6
		S Mukund	6	2	3			8	R Tokuda	77	6
		R Safiullin	6	2					R Safiullin	63	2
	Q	Y He	2	0r											8	R Tokuda	1r
		Y-s Chung	4	6	3										3	A Bublik	3
		B Lock	6	4	6				B Lock	2	5
		A Kadhe	6	66	62			3	A Bublik	6	7
	3	A Bublik	4	78	77																	3	A Bublik	67	5
	5	A Santillan	6	3																		Q	J-s Nam	79	7
		G Granollers	1	1r				5	A Santillan	6	6
		Hiroyasu Ehara	1	61					K-M Maamoun	3	2
		K-M Maamoun	6	77											5	A Santillan	2	3
		Y Takahashi	2	6	2										Q	J-s Nam	6	6
	SE	Xia Zihao	6	1	6			SE	Z Xia	2	3
	Q	J-s Nam	6	6				Q	J-s Nam	6	6
	2	H Laaksonen	1	1

References

• Main Draw
• Qualifying Draw