Sakai Isao
Sakai Isao (酒井栄男) has a rating of 1293. Their highest rating so far is 1302 (May 12, 2006).
Retired. The rating shown is the rating at retirement.
- 2006 record
- 1-1
- Record since 1927
- 23-58
- Win rate
- .284
Rating at retirement (not included in the rating list)
The rating is calculated from published game results. It does not include any adjustment for playing Black.
Professional ratingsFind a player
Rating history — professional
The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| June 9, 2006 | Okumura HideoOza Colors unknown | Loss | ↓8 |
| May 12, 2006 | Yoshioka KaoruOza Colors unknown | Win | ↑23 |
| June 16, 2005 | Takiguchi MasakiKisei Colors unknown | Loss | ↓6 |
| May 16, 2005 | Iwata TatsuakiRyusei Colors unknown | Loss | ↓5 |
| April 7, 2005 | Hotta SeijiJudan Colors unknown | Loss | ↓14 |
| March 24, 2005 | Katayama YasuoGosei Colors unknown | Loss | ↓6 |
| March 10, 2005 | Katayama YasuoJudan Colors unknown | Win | ↑27 |
| February 21, 2005 | Okumura YasushiAgon Kiriyama Cup Colors unknown | Loss | ↓12 |
| February 10, 2005 | Ikezaki TokinoriTengen Colors unknown | Loss | ↓10 |
| October 28, 2004 | Miyagawa FumihikoMeijin Colors unknown | Loss | ↓6 |
| September 23, 2004 | Kato YukiHoninbo Colors unknown | Loss | ↓6 |
| August 12, 2004 | Hiroe KatsuhikoHoninbo Colors unknown | Win | ↑17 |
| July 1, 2004 | Tsukuda AkikoKisei Colors unknown | Loss | ↓10 |
| June 14, 2004 | Hikosaka NaotoRyusei Colors unknown | Loss | ↓2 |
| May 20, 2004 | Ikezaki TokinoriGosei Colors unknown | Loss | ↓11 |
| May 6, 2004 | Miyagawa FumihikoOza Colors unknown | Loss | ↓7 |
| April 8, 2004 | Akedo KazumiOza Colors unknown | Win | ↑16 |
| March 18, 2004 | Shimohira AkioJudan Colors unknown | Loss | ↓15 |
| March 8, 2004 | Shinoda MitsuakiAgon Kiriyama Cup Colors unknown | Loss | ↓13 |
| February 12, 2004 | Baba ShigeruTengen Colors unknown | Loss | ↓9 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Hane Yasumasa | 1-5.167 | 0-3 | 1-2 |
| Shinoda Mitsuaki | 0-3.000 | 0-0 | 0-0 |
| Okumura Hideo | 2-1.667 | 0-0 | 0-0 |
| Miyagawa Fumihiko | 0-3.000 | 0-0 | 0-0 |
| Yoshioka Kaoru | 2-1.667 | 0-0 | 0-0 |
| Nakano Hironari | 0-2.000 | 0-0 | 0-0 |
| Morishima Kaoru | 1-1.500 | 1-1 | 0-0 |
| Shimohira Akio | 0-2.000 | 0-0 | 0-0 |
| Amayake Nobuo | 1-1.500 | 1-1 | 0-0 |
| Baba Shigeru | 0-2.000 | 0-0 | 0-1 |
Record by year
Counted by calendar year, January to December (default wins and losses are included; jigo and no-result games are not). Only games from 1927 onward are counted, so these totals do not match the career records published by the two Ki-in.
| Year | Record | Win rate |
|---|---|---|
| 2006 | 1-1 | .500 |
| 2005 | 1-6 | .143 |
| 2004 | 2-10 | .167 |
| 2003 | 4-9 | .308 |
| 2002 | 4-8 | .333 |
| 2001 | 0-1 | .000 |
| 1992 | 1-1 | .500 |
| 1988 | 0-1 | .000 |
| 1987 | 0-1 | .000 |
| 1986 | 1-0 | 1.000 |
| 1984 | 0-1 | .000 |
| 1982 | 1-4 | .200 |
| 1981 | 1-0 | 1.000 |
| 1979 | 0-2 | .000 |
| 1974 | 4-4 | .500 |
| 1973 | 3-3 | .500 |
| 1972 | 0-1 | .000 |
| 1968 | 0-1 | .000 |
| 1967 | 0-1 | .000 |
| 1966 | 0-1 | .000 |
| 1964 | 0-1 | .000 |
| 1963 | 0-1 | .000 |
| Total | 23-58 | .284 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).