Yokohama Keio Challenger
YokohamaHardCH2023
November 20, 2023 – November 26, 2023$80,000
Draw & Results
Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yosuke Watanuki(JPN) | 7-6, 6-4 | Yuta Shimizu(JPN) | #98 | #246 | 01:47:00m |
Semi-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yosuke Watanuki(JPN) | 6-4, 6-7, 6-0 | Michael Mmoh(USA) | #98 | #122 | 02:28:00m |
Quarter-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yosuke Watanuki(JPN) | 3-6, 6-2, 6-1 | Giovanni Fonio(ITA) | #98 | #299 | 01:45:00m |
| Michael Mmoh(USA) | 7-6, 2-6, 6-4 | Luca Nardi(ITA) | #122 | #118 | 02:24:00m |
| Yuta Shimizu(JPN) | 7-6, 6-7, 7-6 | Coleman Wong(HKG) | #246 | #296 | 02:53:00m |
| Yasutaka Uchiyama(JPN) | 7-6, 7-5 | Li Tu(AUS) | #297 | #247 | 01:44:00m |
Round of 16
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yosuke Watanuki(JPN) | 6-4, 6-3 | Mathys Erhard(FRA) | #98 | #342 | 01:29:00m |
| Giovanni Fonio(ITA) | 4-6, 7-6, 6-4 | Leandro Riedi(SUI) | #299 | #208 | 01:49:00m |
| Michael Mmoh(USA) | 6-4, 5-7, 7-6 | Geoffrey Blancaneaux(FRA) | #122 | #241 | 03:28:00m |
| Luca Nardi(ITA) | 6-2, 6-4 | Kalin Ivanovski(MKD) | #118 | #323 | 01:16:00m |
| Yuta Shimizu(JPN) | 6-4, 6-4 | Marc Polmans(AUS) | #246 | #163 | 01:27:00m |
| Li Tu(AUS) | 2-6, 6-4, 7-5 | Andres Martin(USA) | #247 | #537 | 01:51:00m |
| Yasutaka Uchiyama(JPN) | 2-6, 6-4, 6-4 | Seongchan Hong(KOR) | #297 | #274 | 02:17:00m |
Round of 32
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yosuke Watanuki(JPN) | 6-3, 6-3 | Yu Hsiou Hsu(TPE) | #98 | #210 | 01:11:00m |
| Mathys Erhard(FRA) | 6-3, 6-2 | Colin Sinclair(NMI) | #342 | #366 | 01:07:00m |
| Giovanni Fonio(ITA) | 6-4, 6-1 | August Holmgren(DEN) | #299 | #337 | 01:21:00m |
| Leandro Riedi(SUI) | 6-2, 6-2 | Rio Noguchi(JPN) | #208 | #375 | 01:02:00m |
| Michael Mmoh(USA) | 6-1, 6-2 | Moez Echargui(TUN) | #122 | #278 | 01:28:00m |
| Geoffrey Blancaneaux(FRA) | 6-4, 6-7, 6-3 | Omar Jasika(AUS) | #241 | #316 | 02:44:00m |
| Kalin Ivanovski(MKD) | 6-1, 5-7, 6-2 | Zizou Bergs(BEL) | #323 | #152 | 02:10:00m |
| Luca Nardi(ITA) | 6-2, 6-4 | Yun seong Chung(KOR) | #118 | #357 | 01:04:00m |
| Marc Polmans(AUS) | 6-1, 6-0 | Cem Ilkel(TUR) | #163 | #254 | 00:52:00m |
| Yuta Shimizu(JPN) | 6-4, 7-5 | Jason Jung(TPE) | #246 | #240 | 01:29:00m |
| Coleman Wong(HKG) | 2-6, 6-3, 6-2 | Altug Celikbilek(TUR) | #296 | #309 | 01:36:00m |
| James Duckworth(AUS) | 6-2, 6-7, 6-2 | Zdenek Kolar(CZE) | #109 | #181 | 02:07:00m |
| Andres Martin(USA) | 7-6, 1-6, 6-2 | Naoki Nakagawa(JPN) | #537 | #365 | 01:50:00m |
| Li Tu(AUS) | 6-4, 6-3 | Rei Sakamoto(JPN) | #247 | #1181 | 01:19:00m |
| Yasutaka Uchiyama(JPN) | 6-1, 6-1 | Masamichi Imamura(JPN) | #297 | #1760 | 00:54:00m |
| Seongchan Hong(KOR) | 7-6, 7-6 | Jurij Rodionov(AUT) | #274 | #110 | 02:13:00m |
2nd Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yasutaka Uchiyama(JPN) | 6-4, 6-7, 7-6 | Yun seong Chung(KOR) | #297 | #357 | 02:23:00m |
| Colin Sinclair(NMI) | 6-3, 5-7, 7-6 | Giovanni Fonio(ITA) | #366 | #299 | 02:08:00m |
| Omar Jasika(AUS) | 6-3, 3-6, 7-5 | Andrew Fenty(USA) | #316 | #1099 | 02:15:00m |
| Kalin Ivanovski(MKD) | 4-6, 7-5 | Yan Bai(CHN) | #323 | #373 | 01:49:00m |
| August Holmgren(DEN) | 3-6, 7-5, 6-3 | Naoki Tajima(JPN) | #337 | #1204 | 02:17:00m |
| Naoki Nakagawa(JPN) | 4-6, 6-3, 6-4 | Mathys Erhard(FRA) | #365 | #342 | 01:58:00m |
1st Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Yasutaka Uchiyama(JPN) | 6-3, 6-3 | Yusaku Sugaya(JPN) | #297 | #1322 | 01:16:00m |
| Yun seong Chung(KOR) | 6-4, 6-4 | Fajing Sun(CHN) | #357 | #426 | 01:08:00m |
| Giovanni Fonio(ITA) | 5-7, 6-3, 6-4 | Hiroki Moriya(JPN) | #299 | #430 | 02:37:00m |
| Colin Sinclair(NMI) | 6-3, 7-6 | Nathan Ponwith(USA) | #366 | #487 | 01:19:00m |
| Omar Jasika(AUS) | 6-0, 7-6 | Yuki Mochizuki(JPN) | #316 | #530 | 01:35:00m |
| Andrew Fenty(USA) | 6-4, 7-6 | Ernesto Escobedo(MEX) | #1099 | #396 | 01:53:00m |
| Kalin Ivanovski(MKD) | 3-6, 6-4, 7-5 | Shinji Hazawa(JPN) | #323 | #670 | 02:12:00m |
| Yan Bai(CHN) | 6-4, 6-4 | Kai Wehnelt(GER) | #373 | #561 | 01:13:00m |
| August Holmgren(DEN) | 7-6, 3-6, 6-4 | James Trotter(JPN) | #337 | #533 | 02:17:00m |
| Naoki Tajima(JPN) | 6-4, 3-6, 6-2 | Egor Gerasimov(BLR) | #1204 | #368 | 02:03:00m |
| Mathys Erhard(FRA) | 6-3, 7-6 | Hibiki Arimoto(JPN) | #342 | — | 01:38:00m |
| Naoki Nakagawa(JPN) | 7-5, 7-6 | Yusuke Takahashi(JPN) | #365 | #454 | 02:00:00m |
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 |