Seoul
Main Draw
Entries | Seed | Name | Seeding RankingRk | Entry RankingER |
| 1 | James Duckworth | 108 | 103 |
| 2 | Yunchaokete Bu | 115 | 121 |
| 3 | Yoshihito Nishioka | 152 | 173 |
| 4 | Jurij Rodionov | 154 | 152 |
| 5 | Coleman Wong | 156 | 160 |
| 6 | Henrique Rocha | 161 | 163 |
| 7 | Yosuke Watanuki | 167 | 148 |
| 8 | Taro Daniel | 179 | 164 |
| Oliver Crawford | 189 | 185 |
| Sho Shimabukuro | 195 | 197 |
| Elias Ymer | 202 | 234 |
| Yuta Shimizu | 216 | 206 |
| Yu Hsiou Hsu | 234 | 222 |
| Frederico Ferreira Silva | 245 | 246 |
| Rio Noguchi | 253 | 219 |
| Marc-Andrea Huesler | 257 | 253 |
| Yi Zhou | 270 | 308 |
| Omar Jasika | 286 | 263 |
| Garrett Johns | 288 | 294 |
| Yasutaka Uchiyama | 301 | 290 |
| Hynek Barton | 306 | 300 |
| Renta Tokuda | 327 | 331 |
| (WC) Hyeon Chung | 365 | |
| (WC) Sanhui Shin | 366 | |
| Duje Ajdukovic | 372 | 335 |
| (WC) Woobin Shin | 509 | |
| (Q) | | |
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| (Q) | | |
| (Q) | | |
| (Q) | | |
| (Q) | | |
Alternates | Name | Seeding RankingRk | Entry RankingER |
|---|
| 1 | Kaichi Uchida | 317 | 367 |
| 2 | Sanhui Shin | 366 | 369 |
| 3 | Hyeon Chung | 365 | 386 |
| 4 | Kasidit Samrej | 411 | 398 |
| 5 | Luca Castelnuovo | 404 | 409 |
| 6 | Philip Sekulic | 444 | 426 |
| 7 | Yusuke Takahashi | 440 | 431 |
| 8 | Hikaru Shiraishi | 446 | 441 |
| 9 | Neil Oberleitner | 426 | 453 |
| 10 | Ryuki Matsuda | 501 | 473 |
| 11 | Tsung-Hao Huang | 489 | 474 |
| 12 | Vladyslav Orlov | 471 | 477 |
| 13 | Kokoro Isomura | 493 | 484 |
| 14 | Yuki Mochizuki | 494 | 486 |
| 15 | Egor Agafonov | 492 | 487 |
| 16 | Dominik Palan | 495 | 489 |
| 17 | Masamichi Imamura | 469 | 497 |
| 18 | Woobin Shin | 509 | 499 |
| 19 | Maxim Zhukov | 488 | 506 |
| 20 | Takuya Kumasaka | 527 | 516 |
Withdrawals| | Name | Seeding RankingRk | Entry RankingER |
|---|
| Lloyd Harris | 237 | 223 |
| Bernard Tomic | 182 | 168 |
| Valentin Vacherot | 39 | 204 |
| Jason Kubler | 185 | 190 |
| Harold Mayot | 175 | 172 |
| Yibing Wu | 178 | 159 |
| Yi Zhou | 270 | 308 (NG) |
| Christopher O'Connell | 105 | 109 |
| (SE) | | |
| (SE) | | |
Qualifying
Entries | Seed | Name | Seeding RankingRk | Entry RankingER |
| 1 | Kaichi Uchida | 317 | 367 |
| 2 | Kasidit Samrej | 411 | 398 |
| 3 | Neil Oberleitner | 426 | 453 |
| 4 | Yusuke Takahashi | 440 | 431 |
| 5 | Philip Sekulic | 444 | 426 |
| 6 | Masamichi Imamura | 469 | 497 |
| 7 | Maxim Zhukov | 488 | 506 |
| 8 | Tsung-Hao Huang | 489 | 474 |
| 9 | Egor Agafonov | 492 | 487 |
| 10 | Kokoro Isomura | 493 | 484 |
| 11 | Yuki Mochizuki | 494 | 486 |
| 12 | Dominik Palan | 495 | 489 |
| Ryuki Matsuda | 501 | 473 |
| Takuya Kumasaka | 527 | 516 |
| Evan Zhu | 568 | 578 |
| Michael Vrbensky | 706 | 712 |
| (WC) Duckhee Lee | 722 | |
| (ALT) Uisung Park | 742 | |
| (ALT) JiSung Nam | 769 | |
| (ALT) Kaito Uesugi | 910 | |
| (WC) Yun seong Chung | 1064 | |
| (WC) Dong Ju Kim | 1077 | |
| Ramkumar Ramanathan | 1124 | 629 |
| (WC) Alexander Bravo | - | |
Alternates | Name | Seeding RankingRk | Entry RankingER |
|---|
| 1 | Duckhee Lee | 722 | 720 |
| 2 | Uisung Park | 742 | 739 |
| 3 | JiSung Nam | 769 | 761 |
| 4 | Naoya Honda | 799 | 794 |
| 5 | Kaito Uesugi | 910 | 911 |
| 6 | Ivan Nedelko | 999 | 1030 |
| 7 | Dong Ju Kim | 1077 | 1080 |
| 8 | Aoran Wang | 901 | 1087 |
| 9 | Hanyi Liu | 1132 | 1133 |
| 10 | Junhyeon Lee | 1301 | 1295 |
| 11 | Thijmen Loof | 2066 | 1751 |
Withdrawals| | Name | Seeding RankingRk | Entry RankingER |
|---|
| Duje Ajdukovic | 372 | 335 |
| Hiroki Moriya | 396 | 381 |
| Hynek Barton | 306 | 300 |
| Hyeon Chung | 365 | 386 |
| Frederico Ferreira Silva | 245 | 246 |
| Sanhui Shin | 366 | 369 |
| Marc-Andrea Huesler | 257 | 253 |
| Hikaru Shiraishi | 446 | 441 |
| Omar Jasika | 286 | 263 |
| Garrett Johns | 288 | 294 |
| Renta Tokuda | 327 | 331 |
| Aslan Karatsev | 344 | 273 |
| Yasutaka Uchiyama | 301 | 290 |
| Linang Xiao | 726 | 643 |