Yokohama Keio Challenger
YokohamaHardCH2022
October 31, 2022 – November 6, 2022$53,120
Draw & Results
Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Christopher O'Connell(AUS) | 6-1, 6-7, 6-3 | Yosuke Watanuki(JPN) | #102 | #227 | 02:18:00m |
Semi-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Christopher O'Connell(AUS) | 6-3, 6-3 | Sho Shimabukuro(JPN) | #102 | #331 | 01:26:00m |
| Yosuke Watanuki(JPN) | 7-5, 7-6 | Nino Serdarusic(CRO) | #227 | #280 | 01:52:00m |
Quarter-Finals
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Christopher O'Connell(AUS) | 6-7, 7-6, 6-4 | Tung-Lin Wu(TPE) | #102 | #211 | 02:29:00m |
| Sho Shimabukuro(JPN) | 6-4, 6-1 | Damir Dzumhur(BIH) | #331 | #179 | 01:00:00m |
| Yosuke Watanuki(JPN) | 7-5, 4-6, 6-3 | Kaichi Uchida(JPN) | #227 | #172 | 02:30:00m |
Round of 16
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Christopher O'Connell(AUS) | 6-3, 6-4 | Ergi Kirkin(TUR) | #102 | #406 | 01:26:00m |
| Tung-Lin Wu(TPE) | 6-2, 6-4 | Rimpei Kawakami(JPN) | #211 | #503 | 01:25:00m |
| Damir Dzumhur(BIH) | 5-7, 6-4, 6-4 | James Trotter(JPN) | #179 | #653 | 02:19:00m |
| Sho Shimabukuro(JPN) | 6-4, 6-3 | Jason Jung(TPE) | #331 | #438 | 01:16:00m |
| Yosuke Watanuki(JPN) | 5-7, 6-0, 2-1 | Tatsuma Ito(JPN) | #227 | #617 | 01:37:00m |
| Kaichi Uchida(JPN) | 7-6, 6-3 | Yun seong Chung(KOR) | #172 | #384 | 01:14:00m |
| Nino Serdarusic(CRO) | 6-4, 4-6, 7-5 | Filip Cristian Jianu(ROU) | #280 | #306 | 02:20:00m |
| John Millman(AUS) | 6-3, 6-2 | Frederico Ferreira Silva(POR) | #160 | #273 | 01:25:00m |
Round of 32
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Christopher O'Connell(AUS) | 6-4, 7-6 | Ramkumar Ramanathan(IND) | #102 | #267 | 01:38:00m |
| Ergi Kirkin(TUR) | 6-4, 6-2 | Shinji Hazawa(JPN) | #406 | #659 | 01:29:00m |
| Rimpei Kawakami(JPN) | 6-7, 6-1, 6-4 | Tomoya Fujiwara(JPN) | #503 | — | 02:30:00m |
| Tung-Lin Wu(TPE) | 6-3, 6-3 | Yuichi Sugita(JPN) | #211 | #1112 | 01:07:00m |
| Damir Dzumhur(BIH) | 6-3, 6-1 | Ryota Tanuma(JPN) | #179 | #612 | 01:00:00m |
| James Trotter(JPN) | 6-4, 6-1 | Jonathan Mridha(SWE) | #653 | #597 | 01:10:00m |
| Sho Shimabukuro(JPN) | 6-2, 6-4 | Yuki Mochizuki(JPN) | #331 | #567 | 01:22:00m |
| Jason Jung(TPE) | 6-2, 6-1 | Zdenek Kolar(CZE) | #438 | #237 | 00:57:00m |
| Yosuke Watanuki(JPN) | 6-4, 6-4 | Naoki Nakagawa(JPN) | #227 | #443 | 01:32:00m |
| Tatsuma Ito(JPN) | 4-6, 6-4, 6-0 | Nam Hoang Ly(VIE) | #617 | #243 | 01:46:00m |
| Yun seong Chung(KOR) | 6-3, 6-4 | Masamichi Imamura(JPN) | #384 | #786 | 01:12:00m |
| Kaichi Uchida(JPN) | 3-6, 7-5, 6-3 | Seongchan Hong(KOR) | #172 | #382 | 02:18:00m |
| Filip Cristian Jianu(ROU) | 7-6, 0-6, 6-4 | Hiroki Moriya(JPN) | #306 | #216 | 02:27:00m |
| Nino Serdarusic(CRO) | 6-3, 6-7, 6-1 | Shintaro Mochizuki(JPN) | #280 | #360 | 02:13:00m |
| Frederico Ferreira Silva(POR) | 7-5, 6-2 | Nicholas David Ionel(ROU) | #273 | #256 | 01:32:00m |
| John Millman(AUS) | 6-3, 7-6 | Taisei Ichikawa(JPN) | #160 | #964 | 02:07:00m |
2nd Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Seongchan Hong(KOR) | 6-2, 7-5 | Keisuke Saitoh(JPN) | #382 | #739 | 01:29:00m |
| Taisei Ichikawa(JPN) | 2-6, 6-4, 6-2 | Daisuke Sumizawa(JPN) | #964 | #780 | 02:10:00m |
| Ryota Tanuma(JPN) | 7-6, 4-6, 6-4 | Rimpei Kawakami(JPN) | #612 | #503 | 02:38:00m |
| Jonathan Mridha(SWE) | 4-6, 6-2, 7-5 | Hikaru Shiraishi(JPN) | #597 | #1076 | 02:36:00m |
| James Trotter(JPN) | 6-3, 6-3 | Naru Shirafuji(JPN) | #653 | #1712 | 01:15:00m |
| Yuki Mochizuki(JPN) | 6-3, 6-4 | Asahi Harazaki(JPN) | #567 | #1491 | 01:21:00m |
1st Round Qualifying
| Winner | Score | Loser | W Rank | L Rank | Duration |
|---|---|---|---|---|---|
| Seongchan Hong(KOR) | 6-1, 6-2 | Yusaku Sugaya(JPN) | #382 | #1322 | 01:20:00m |
| Keisuke Saitoh(JPN) | 6-2, 4-2 | Jumpei Yamasaki(JPN) | #739 | #862 | 01:05:00m |
| Taisei Ichikawa(JPN) | 7-6, 7-5 | JiSung Nam(KOR) | #964 | #479 | 01:55:00m |
| Daisuke Sumizawa(JPN) | 6-3, 6-0 | Seiya Nakanishi(JPN) | #780 | #1651 | 01:27:00m |
| Rimpei Kawakami(JPN) | 6-2, 6-4 | Taketo Takamisawa(JPN) | #503 | #1153 | 01:30:00m |
| Ryota Tanuma(JPN) | 6-2, 6-1 | Kohei Hayashi(JPN) | #612 | #1694 | 01:02:00m |
| Hikaru Shiraishi(JPN) | 6-1, 4-6, 7-5 | Makoto Ochi(JPN) | #1076 | #527 | 03:02:00m |
| Jonathan Mridha(SWE) | 6-1, 4-6, 7-5 | Yamato Sueoka(JPN) | #597 | #1121 | 02:09:00m |
| Naru Shirafuji(JPN) | 6-4, 6-4 | Arjun Kadhe(IND) | #1712 | #560 | 01:17:00m |
| James Trotter(JPN) | 5-7, 7-5, 6-1 | Victor Cornea(ROU) | #653 | #1111 | 02:05:00m |
| Yuki Mochizuki(JPN) | 6-3, 6-0 | Takuya Kumasaka(JPN) | #567 | #850 | 00:55:00m |
| Asahi Harazaki(JPN) | 6-1, 7-5 | Savriyan Danilov(RUS) | #1491 | #626 | 01:20:00m |
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 |