2019 OEC Kaohsiung

The 2019 OEC Kaohsiung was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Kaohsiung, Taiwan between 16 and 22 September 2019.

2019 OEC Kaohsiung
Date	16–22 September
Edition	8th
Surface	Hard
Location	Kaohsiung, Taiwan
Champions
Singles
John Millman
Doubles
Hsieh Cheng-peng / Yang Tsung-hua

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
POL	Kamil Majchrzak	84	1
IND	Prajnesh Gunneswaran	85	2
AUS	John Millman	95	3
AUS	Bernard Tomic	107	4
CZE	Jiří Veselý	131	5
TPE	Jason Jung	132	6
JPN	Go Soeda	134	7
JPN	Yūichi Sugita	141	8
AUS	Alex Bolt	144	9
AUS	Marc Polmans	159	10
JPN	Yasutaka Uchiyama	165	11
CAN	Steven Diez	170	12
AUS	Andrew Harris	197	13
ESP	Enrique López Pérez	218	14
JPN	Yosuke Watanuki	231	15
JPN	Hiroki Moriya	232	16

• ¹ Rankings are as of 9 September 2019.^[1]

Other entrants

The following players received wildcards into the singles main draw:

• Ray Ho
• Hsieh Cheng-peng
• Hsu Yu-hsiou
• Lo Chien-hsun
• Yu Cheng-yu

The following player received entry into the singles main draw using a protected ranking:

• Miliaan Niesten

The following players received entry from the qualifying draw:

• Yusuke Takahashi
• Jumpei Yamasaki

The following players received entry as lucky losers:

• Lee Kuan-yi
• Tsai Chang-lin

Champions

Singles

Main article: 2019 OEC Kaohsiung – Singles

• John Millman def. Marc Polmans 6–4, 6–2.

Doubles

Main article: 2019 OEC Kaohsiung – Doubles

• Hsieh Cheng-peng / Yang Tsung-hua def. Evan King / Hunter Reese 6–4, 7–6^(7–4).