Seoul CH 2018
Mackenzie McDonald won the title, beating Jordan Thompson 1–6 6–4 6–1 in the final.
Main draw 32 players
- 1🇨🇦Vasek PospisilRound of 16 · Lost to Jason Kubler
- 2🇮🇱Dudi SelaRound of 32 · Lost to Di Wu
- 3🇦🇺Jordan ThompsonFinal · Lost to Mackenzie McDonald
- 4🇹🇼Yen Hsun LuRound of 16 · Lost to Lloyd Harris
- 5🇺🇸Mackenzie McDonald#262Final · Champion
- 6🇯🇵Go SoedaRound of 16 · Lost to Soonwoo Kwon
- 7🇹🇼Jason JungRound of 16 · Lost to Tsung Hua Yang
- 8🇯🇵Tatsuma ItoSemifinals · Lost to Mackenzie McDonald
- 🇦🇺Jason KublerSemifinals · Lost to Jordan Thompson
- 🇨🇳Di WuQuarterfinals · Lost to Tatsuma Ito
- 🇿🇦Lloyd Harris#103Quarterfinals · Lost to Mackenzie McDonald
- 🇰🇷Soonwoo Kwon#155Quarterfinals · Lost to Jason Kubler
- 🇹🇼Tsung Hua YangQuarterfinals · Lost to Jordan Thompson
- Q🇰🇷Ji Hoon SonRound of 16 · Lost to Jordan Thompson
- SE🇵🇱Kamil Majchrzak#82Round of 16 · Lost to Mackenzie McDonald
- WC🇰🇷Seong Chan HongRound of 16 · Lost to Tatsuma Ito
- Q🇯🇵Yosuke Watanuki#237Round of 16 · Lost to Di Wu
- 🇨🇦Brayden SchnurRound of 32 · Lost to Vasek Pospisil
- 🇦🇺Dayne KellyRound of 32 · Lost to Yosuke Watanuki
- 🇰🇷Duck Hee LeeRound of 32 · Lost to Tatsuma Ito
- 🇵🇱Filip PeliwoRound of 32 · Lost to Ji Hoon Son
- Q🇯🇵Makoto OchiRound of 32 · Lost to Jason Jung
- 🇺🇸Marcos Giron#94Round of 32 · Lost to Go Soeda
- 🇦🇺Maverick BanesRound of 32 · Lost to Yen Hsun Lu
- 🇫🇷Maxime JanvierRound of 32 · Lost to Soonwoo Kwon
- Q🇯🇵Renta TokudaRound of 32 · Lost to Tsung Hua Yang
- WC🇰🇷Uisung ParkRound of 32 · Lost to Mackenzie McDonald
- 🇯🇵Yasutaka UchiyamaRound of 32 · Lost to Seong Chan Hong
- WC🇰🇷Young Seok KimRound of 32 · Lost to Jordan Thompson
- WC🇰🇷Yunseong ChungRound of 32 · Lost to Lloyd Harris
- 🇯🇵Yusuke TakahashiRound of 32 · Lost to Kamil Majchrzak
- 🇨🇳Ze Zhang#156Round of 32 · Lost to Jason Kubler