2019 OEC Kaohsiung – Singles

The 2019 OEC Kaohsiung-Singles was a men's tennis tournament held from September 16 to September 22, 2019, at Kaohsiung, Taiwan. Gaël Monfils was the defending champion^[1] but chose not to defend his title.

Singles
2019 OEC Kaohsiung
Champion	John Millman
Runner-up	Marc Polmans
Score	6–4, 6–2

Main article: 2019 OEC Kaohsiung

John Millman won the title after defeating Marc Polmans 6–4, 6–2 in the final.

Seeds

All seeds receive a bye into the second round.

1. Kamil Majchrzak (third round)
2. Prajnesh Gunneswaran (third round)
3. John Millman (champion)
4. Bernard Tomic (withdrew)
5. Jiří Veselý (quarterfinals)
6. Jason Jung (third round)
7. Go Soeda (third round)
8. Yūichi Sugita (third round)
9. Alex Bolt (quarterfinals)
10. Marc Polmans (final)
11. Yasutaka Uchiyama (third round)
12. Steven Diez (semifinals)
13. Andrew Harris (third round)
14. Enrique López Pérez (quarterfinals)
15. Yosuke Watanuki (second round)
16. Hiroki Moriya (third 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

	Quarterfinals							Semifinals							Final
		Frederico Ferreira Silva	6	78
	9	Alex Bolt	4	66
									Frederico Ferreira Silva	1	7	5
								10	Marc Polmans	6	5	7
		Nam Ji-sung	6	1	4
	10	Marc Polmans	3	6	6
															10	Marc Polmans	4	2
															3	John Millman	6	6
	5	Jiří Veselý	65	1
	3	John Millman	77	6
								3	John Millman	2	6	6
								12	Steven Diez	6	3	2
	12	Steven Diez	6	78
	14	Enrique López Pérez	3	66

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	K Majchrzak	6	6
		H Bourchier	3	6	6				H Bourchier	4	4
	Q	Y Takahashi	6	1	2										1	K Majchrzak	63	5
		T-l Wu	63	3												F Ferreira Silva	77	7
		F Ferreira Silva	77	6					F Ferreira Silva	78	1	6
								15	Yo Watanuki	66	6	3
																							F Ferreira Silva	6	78
																						9	A Bolt	4	66
								9	A Bolt	7	6
		Y-s Chung	4	3				PR	M Niesten	5	4
	PR	Miliaan Niesten	6	6											9	A Bolt	7	4	78
		Shintaro Imai	3	4											6	J Jung	5	6	66
		Renta Tokuda	6	6					R Tokuda	2	3
								6	J Jung	6	6

Section 2

	First round							Second round							Third round							Quarterfinals
								LL	Tsai Chang-lin	4	1
		J-s Nam	4	6	3				J-s Nam	6	6
	WC	C-y Yu	6	2	1r											J-s Nam	6	6
	WC	C-p Hsieh	2	2											13	A Harris	2	2
		T-h Yang	6	6					T-h Yang	66	3
								13	A Harris	78	6
																							J-s Nam	6	1	4
																						10	M Polmans	3	6	6
								10	M Polmans	6	6
		S Mukund	710	3	78				S Mukund	4	1
		G Oliveira	68	6	66										10	M Polmans	1	711	6
	LL	K-y Lee	2	3											7	G Soeda	6	69	3
		C-h Tseng	6	6					C-h Tseng	2	3
								7	G Soeda	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								5	J Veselý	78	6
		T Gabashvili	6	5	6				T Gabashvili	66	1
		C Altamirano	3	7	4										5	J Veselý	7	6
		A Santillan	6	7											11	Y Uchiyama	5	2
	WC	Y-h Hsu	3	5					A Santillan	65	3
								11	Y Uchiyama	77	6
																						5	J Veselý	65	1
																						3	J Millman	77	6
								16	H Moriya	6	6
		J Ward	4	6	4				K Uchida	4	2
		K Uchida	6	0	6										16	H Moriya	2	62
		R Noguchi	6	6											3	J Millman	6	77
	WC	Lo Chien-hsun	2	2					R Noguchi	1	2
								3	J Millman	6	6

Section 4

	First round							Second round							Third round							Quarterfinals
								8	Y Sugita	77	4	6
		S Myneni	6	1	3				M Purcell	62	6	2
		M Purcell	3	6	6										8	Y Sugita	2	4
	Q	Jumpei Yamasaki	67	4											12	S Diez	6	6
		L Saville	79	6					L Saville	6	4	1
								12	S Diez	3	6	6
																						12	S Diez	6	78
																						14	E López Pérez	3	66
								14	E López Pérez	6	6
		Jacob Grills	4	6	2				E King	3	3
		E King	6	3	6										14	E López Pérez	5	7	6
	WC	R Ho	66	3											2	P Gunneswaran	7	5	4
		Shuichi Sekiguchi	78	6					S Sekiguchi	3	2
								2	P Gunneswaran	6	6