58th Okan-sen
Host Organization: Chunichi Shimbun
Title match
| Players | 1st round 11-13 Takayama Gifu |
|---|---|
| Ida Atsushi (Okan) | W+R |
| Mutsuura Yuta (7 dan) |
Ida Atsushi kept the title.
Tournament table
| Players | 1st round | 2nd round | Semifinals | Challenger decision match |
|---|---|---|---|---|
| Takahashi Masumi(2d) | Takahashi M B+R 01-12 |
Takahashi M W+3.5 05-18 |
Shida T W+R 08-31 |
Mutsuura Y B+3.5 10-23 |
| Hikosaka Naoto(9d) | ||||
| Matsuoka Hideki(9d) | ||||
| Shida Tatsuya(7d) | Shida T B+R 02-09 |
Shida T W+R 04-13 | ||
| Bian Wenkai(2d) | ||||
| Katayama Yasuo(8d) | ||||
| Yanagisawa Satoshi(5d) | Yanagisawa S B+R 12-26 |
Yanagisawa S W+R 07-27 |
Mutsuura Y W+R 09-14 | |
| Shinoda Mitsuaki(7d) | ||||
| O Keii(3d) | ||||
| Nakano Hironari(9d) | Mutsuura Y B+R 03-09 |
Mutsuura Y B+R 06-15 | ||
| Mutsuura Yuta(7d) | ||||
| Hane Naoki(9d) | ||||
History; 2016-12-24 Table was created. 2017-01-08,13 Updated. 2017-02-03,10 Updated. 2017-03-03,10 Updated. 2017-04-08,14 Updated. 2017-05-12,19 Updated. 2017-06-10,16 Updated. 2017-07-22,29 Updated. 2017-08-25 Updated. 2017-09-03,09,15 Updated. 2017-10-20,27 Updated. 2017-11-16 Updated.