Keio Challenger International Tennis Tournament
YokohamaHardCH2018
February 26, 2018 – March 4, 2018$75,000
Draw & Results
Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yasutaka Uchiyama(JPN) | 2-6, 6-3, 6-4 | Tatsuma Ito(JPN) | #290 | #183 | 02:00:00m |
Semi-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yasutaka Uchiyama(JPN) | 6-4, 7-5 | Jordan Thompson(AUS) | #290 | #92 | 01:41:00m |
Quarter-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Jordan Thompson(AUS) | 6-3, 4-6, 6-2 | Stephane Robert(FRA) | #92 | #161 | 01:46:00m |
| Yasutaka Uchiyama(JPN) | 4-6, 7-6, 6-3 | Go Soeda(JPN) | #290 | #153 | 02:28:00m |
| Cem Ilkel(TUR) | 7-6, 6-2 | Tobias Kamke(GER) | #271 | #213 | 01:28:00m |
| Tatsuma Ito(JPN) | 6-3, 6-3 | Hiroki Moriya(JPN) | #183 | #354 | 01:17:00m |
Round of 16
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Jordan Thompson(AUS) | 6-4, 6-2 | Hiroyasu Ehara(JPN) | #92 | #368 | 01:16:00m |
| Stephane Robert(FRA) | 7-5, 6-0 | Daniel Nguyen(USA) | #161 | #377 | 01:19:00m |
| Go Soeda(JPN) | 7-6, 6-3 | Di Wu(CHN) | #153 | #258 | 01:44:00m |
| Yasutaka Uchiyama(JPN) | 6-3, 7-5 | Shinji Hazawa(JPN) | #290 | #1030 | 01:36:00m |
| Cem Ilkel(TUR) | 6-2, 2-6, 7-6 | Duckhee Lee(KOR) | #271 | #193 | 02:08:00m |
| Tobias Kamke(GER) | 6-4, 6-2 | Jason Jung(TPE) | #213 | #155 | 01:14:00m |
| Tatsuma Ito(JPN) | 3-6, 6-3, 7-6 | Jason Kubler(AUS) | #183 | #209 | 02:23:00m |
Round of 32
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Jordan Thompson(AUS) | 2-6, 6-4, 6-3 | Prajnesh Gunneswaran(IND) | #92 | #232 | 02:01:00m |
| Hiroyasu Ehara(JPN) | 7-6, 6-7, 6-4 | Andrew Whittington(AUS) | #368 | #249 | 02:48:00m |
| Daniel Nguyen(USA) | 6-2, 6-4 | Yosuke Watanuki(JPN) | #377 | #375 | 01:00:00m |
| Stephane Robert(FRA) | 3-6, 6-1, 6-3 | Jumpei Yamasaki(JPN) | #161 | #846 | 01:21:00m |
| Go Soeda(JPN) | 6-0, 6-2 | Kaito Itsusaki(JPN) | #153 | #1312 | 01:02:00m |
| Di Wu(CHN) | 6-4, 7-6 | Ze Zhang(CHN) | #258 | #286 | 01:36:00m |
| Yasutaka Uchiyama(JPN) | 6-4, 3-6, 6-4 | Hubert Hurkacz(POL) | #290 | #212 | 01:48:00m |
| Shinji Hazawa(JPN) | 6-3, 4-6, 7-6 | Soonwoo Kwon(KOR) | #1030 | #186 | 02:29:00m |
| Duckhee Lee(KOR) | 4-6, 6-4, 6-3 | Tim Puetz(GER) | #193 | #278 | 02:07:00m |
| Cem Ilkel(TUR) | 6-3, 6-4 | Blake Ellis(AUS) | #271 | #510 | 01:09:00m |
| Tobias Kamke(GER) | 6-7, 6-2, 7-5 | Matteo Donati(ITA) | #213 | #260 | 02:06:00m |
| Jason Jung(TPE) | 6-2, 6-7, 6-4 | Yun seong Chung(KOR) | #155 | #553 | 02:14:00m |
| Tatsuma Ito(JPN) | 6-2, 6-3 | Kaito Uesugi(JPN) | #183 | #747 | 00:57:00m |
| Jason Kubler(AUS) | 6-3, 1-6, 6-3 | Edan Leshem(ISR) | #209 | #253 | 01:36:00m |
| Hiroki Moriya(JPN) | 6-0, 6-2 | Konstantin Kravchuk(RUS) | #354 | #294 | 00:57:00m |
| John Millman(AUS) | 6-3, 7-6 | Max Purcell(AUS) | #93 | #270 | 01:43:00m |
3rd Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Jumpei Yamasaki(JPN) | 4-6, 7-6, 6-4 | Masamichi Imamura(JPN) | #846 | #1770 | 02:43:00m |
| Hiroyasu Ehara(JPN) | 7-6, 3-6, 6-4 | Zhe Li(CHN) | #368 | #321 | 02:40:00m |
| Yun seong Chung(KOR) | 6-3, 1-6, 6-1 | Makoto Ochi(JPN) | #553 | #574 | 01:20:00m |
| Hiroki Moriya(JPN) | 6-2, 6-3 | Daniel Nguyen(USA) | #354 | #377 | 01:10:00m |
2nd Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Jumpei Yamasaki(JPN) | 2-6, 6-1, 6-4 | Maverick Banes(AUS) | #846 | #313 | 02:03:00m |
| Masamichi Imamura(JPN) | 6-1, 6-4 | Wishaya Trongcharoenchaikul(THA) | #1770 | #440 | 00:55:00m |
| Zhe Li(CHN) | 6-0, 6-3 | Teppei Uesugi(JPN) | #321 | — | 00:52:00m |
| Hiroyasu Ehara(JPN) | 7-5, 6-3 | Tung-Lin Wu(TPE) | #368 | #544 | 01:24:00m |
| Yun seong Chung(KOR) | 6-7, 6-3, 6-3 | Takuto Niki(JPN) | #553 | #499 | 02:05:00m |
| Hiroki Moriya(JPN) | 6-3, 6-0 | Sho Katayama(JPN) | #354 | #633 | 00:54:00m |
| Daniel Nguyen(USA) | 4-6, 7-5, 6-2 | Yuta Shimizu(JPN) | #377 | #668 | 02:00:00m |
1st Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Maverick Banes(AUS) | 7-6, 1-6, 7-6 | Shintaro Imai(JPN) | #313 | #410 | 02:29:00m |
| Jumpei Yamasaki(JPN) | 6-3, 6-3 | Kento Takeuchi(JPN) | #846 | #466 | 01:08:00m |
| Masamichi Imamura(JPN) | 7-6, 2-1 | Sora Fukuda(JPN) | #1770 | #411 | 01:19:00m |
| Wishaya Trongcharoenchaikul(THA) | 6-4, 7-6 | Cheong-Eui Kim(KOR) | #440 | #370 | 01:26:00m |
| Zhe Li(CHN) | 5-7, 6-1, 6-2 | Ryota Tanuma(JPN) | #321 | #803 | 02:01:00m |
| Teppei Uesugi(JPN) | 6-2, 6-7, 7-6 | Kengo Sasaki(JPN) | — | — | 02:09:00m |
| Tung-Lin Wu(TPE) | 6-1, 6-4 | Renta Tokuda(JPN) | #544 | #405 | 01:12:00m |
| Hiroyasu Ehara(JPN) | 6-1, 6-2 | Luca Margaroli(SUI) | #368 | #825 | 01:01:00m |
| Makoto Ochi(JPN) | 6-4, 7-6 | Brydan Klein(GBR) | #574 | #323 | 01:48:00m |
| Takanyi Garanganga(ZIM) | 6-3, 4-6, 7-6 | Naoto Kai(JPN) | #493 | — | 02:21:00m |
| Yun seong Chung(KOR) | 6-0, 7-5 | Masato Shiga(JPN) | #553 | #776 | 00:54:00m |
| Takuto Niki(JPN) | 3-6, 7-6, 7-5 | N.Sriram Balaji(IND) | #499 | #409 | 02:05:00m |
| Hiroki Moriya(JPN) | 6-2, 6-4 | Shuichi Sekiguchi(JPN) | #354 | #442 | 01:23:00m |
| Sho Katayama(JPN) | 6-4, 2-6, 6-2 | Michal Przysiezny(POL) | #633 | #506 | 01:22:00m |
| Yuta Shimizu(JPN) | 6-2, 6-3 | Yo Han Sung(KOR) | #668 | — | 01:02:00m |
| Daniel Nguyen(USA) | 6-1, 6-3 | Nasa Hatakeyama(JPN) | #377 | — | 01:00:00m |
Past Winners
| Year | Winner | Country | Surface |
|---|---|---|---|
| 2025 | Rei Sakamoto | JPN | Hard |
| 2024 | Yuta Shimizu | JPN | Hard |
| 2023 | Yosuke Watanuki | JPN | Hard |
| 2022 | Christopher O'Connell | AUS | Hard |
| 2019 | Soonwoo Kwon | KOR | Hard |
| 2018 | Yasutaka Uchiyama | JPN | Hard |
| 2017 | Yuichi Sugita | JPN | Hard |
| 2015 | Taro Daniel | JPN | Hard |
| 2014 | John Millman | AUS | Hard |
| 2013 | Matthew Ebden | AUS | Hard |
| 2012 | Matteo Viola | ITA | Hard |