| 2017 Seoul Open Challenger | ||||
|---|---|---|---|---|
| Date | 8–14 May | |||
| Edition | 3rd | |||
| Surface | Hard | |||
| Location | Seoul, South Korea | |||
| Champions | ||||
| Singles | ||||
 Thomas Fabbiano | ||||
| Doubles | ||||
 Hsieh Cheng-peng /Peng Hsien-yin | ||||
| ||||
The2017Seoul Open Challenger was a professionaltennis tournament played on outdoorhard courts. It was the third edition of the tournament. It was part of the2017 ATP Challenger Tour. It took place inSeoul, South Korea, on 8–14 May 2017.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| TPE | Lu Yen-hsun | 56 | 1 |
 KOR | |||
 ISR | Dudi Sela | 99 | 3 |
 RUS | Konstantin Kravchuk | 105 | 4 |
 CAN | Vasek Pospisil | 111 | 5 |
 SLO | Blaž Kavčič | 123 | 6 |
 UKR | Illya Marchenko | 125 | 7 |
 BEL | Ruben Bemelmans | 132 | 8 |
The following players received wildcards into the singles main draw:
Chung HongChung Yun-seongHong Seong-chan Kim Young-seokThe following player received entry into the singles main draw as an alternate:
The following player received entry into the singles main draw as a special exempt:
The following player received entry into the singles main draw using a protected ranking:
The following players received entry from the qualifying draw:
Félix Auger-Aliassime
Austin KrajicekDaniel Nguyen
Shuichi SekiguchiThe following player received entry as a lucky loser:
Thomas Fabbiano def.Kwon Soon-woo 1–6, 6–4, 6–3.Hsieh Cheng-peng /Peng Hsien-yin def.Thomas Fabbiano /Dudi Sela 5–1 ret.
