Singles
2018 Busan Open
Champion	Matthew Ebden
Runner-up	Vasek Pospisil
Score	7–6(7–4), 6–1

Vasek Pospisil was the defending champion but lost in the final to Matthew Ebden.

Ebden won the title after defeating Pospisil 7–6^(7–4), 6–1 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Matthew Ebden	6	6
		Filip Peliwo	3	1
								1	Matthew Ebden	77	6
								3	Vasek Pospisil	64	1
	3	Vasek Pospisil	6	3	6
	Q	Yosuke Watanuki	3	6	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Ebden	6	3	6
	Q	Y-s Chung	3	6	3			1	M Ebden	4	77	1
		T Ito	2	711	6				T Ito	6	61	0r
		Y Uchiyama	6	69	4										1	M Ebden	6	6
		D Wu	4	6	1										8	J Jung	2	2
		Z Li	6	3	6				Z Li	61	7	1
		H Moriya	1	1				8	J Jung	77	5	6
	8	J Jung	6	6																		1	M Ebden	6	6
	4	D Sela	1	4																			F Peliwo	3	1
		F Peliwo	6	6					F Peliwo	4	6	6
		Y Takahashi	2	1					D-h Lee	6	2	4
		D-h Lee	6	6												F Peliwo	2	6	78
		K Uchida	6	6											6	M McDonald	6	3	66
	WC	Oh Chan-yeong	1	4					K Uchida	64	3
		B Schnur	6	2	1			6	M McDonald	77	6
	6	M McDonald	2	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	G Soeda	6	6
	Q	R Statham	3	3				7	G Soeda	4	4
	WC	Kim Young-seok	3	3					M Giron	6	6
		M Giron	6	6												M Giron	6	2	4
		M Purcell	6	6											3	V Pospisil	3	6	6
	WC	J-w Na	4	1					M Purcell	2	3
	Q	M Banes	77	1	5			3	V Pospisil	6	6
	3	V Pospisil	62	6	7																	3	V Pospisil	6	3	6
	5	Y-h Lu	1	2																		Q	Yo Watanuki	3	6	4
	Q	Yo Watanuki	6	6				Q	Yo Watanuki	713	6
	WC	S-c Hong	2	4					J-P Smith	611	4
		J-P Smith	6	6											Q	Yo Watanuki	4	6	6
		Ze Zhang	6	6												Ze Zhang	6	4	1
		D Kelly	1	4					Ze Zhang	6	6
	SE	Y Nishioka	6	66	0r			2	Y Bhambri	4	3
	2	Y Bhambri	3	78	3

References

• Main Draw
• Qualifying Draw