白岩 · Juryo · Kiriyama stable · retired
| Highest rank | Juryo |
| Stable | Kiriyama stable |
| From | Akita-ken, Senboku-gun, Kakunodate-machi |
| Born | 1957-03-05 |
| Height | 182.4 cm |
| Weight | 103 kg |
| First tournament | January 1975 |
| Retired | 1987-09-01T00:00:00Z |
The ring name is written 白岩. Taken character by character:
| 白 | white |
| 岩 | crag |
These are the dictionary meanings of the characters, not a statement about why this particular name was chosen — that is the stablemaster’s business, and we do not guess at it. How ring names are put together →
Shiraiwa Masatoshi has fought 271 recorded bouts, winning 127 and losing 144 — a winning rate of 46.9%. He has taken 1 championship.
| Technique | Japanese | Wins | Share |
|---|---|---|---|
| Underarm throw | 下手投げ | 5 | 11.9% |
| Over arm throw | 上手投げ | 5 | 11.9% |
| Frontal force out | 寄り切り | 4 | 9.5% |
| Rear push out | 送り出し | 4 | 9.5% |
| Frontal crush out | 寄り倒し | 3 | 7.1% |
| Minor inner foot sweep | 蹴返し | 3 | 7.1% |
| Pulling underarm throw | 下手出し投げ | 2 | 4.8% |
| Frontal push down | 押し倒し | 2 | 4.8% |
Counted from his winning bouts in this database. English names follow NHK WORLD-JAPAN. All 87 techniques →
| Opponent | Bouts | Won | Lost |
|---|---|---|---|
| Kotochitose Kosei | 7 | 1 | 6 |
| Hachiya Toshiyuki | 6 | 3 | 3 |
| Tochiizumi Takayuki | 6 | 4 | 2 |
| Chikubayama Masakuni | 5 | 1 | 4 |
| Shishuyama Makuni# | 5 | 4 | 1 |
| Tsurunofuji | 5 | 2 | 3 |
| Sanofuji Kiyohiko | 5 | 1 | 4 |
| Tochitsukasa Tetsuo | 5 | 1 | 4 |
| Tournament | Rank | Record |
|---|---|---|
| September 1987 | Makushita 55 West | 0–0–7 |
| July 1987 | Makushita 31 East | 2–5 |
| May 1987 | Makushita 41 East | 4–3 |
| March 1987 | Makushita 18 East | 2–5 |
| January 1987 | Makushita 26 East | 4–3 |
| November 1986 | Makushita 17 West | 3–4 |
| September 1986 | Makushita 27 East | 4–3 |
| July 1986 | Makushita 17 East | 3–4 |
| May 1986 | Makushita 26 East | 5–2 |
| March 1986 | Makushita 41 East | 5–2 |
| January 1986 | Makushita 12 East | 1–6 |
| November 1985 | Makushita 5 West | 3–4 |
| September 1985 | Makushita 11 East | 5–2 |
| July 1985 | Juryo 9 West | 2–13 |
| May 1985 | Makushita 1 East | 5–2 |
The Japanese side of this site carries seven pages on Shiraiwa Masatoshi: tournament-by-tournament results, every bout he has fought, head-to-head records against all opponents, a breakdown of his winning techniques, a reading of his fighting style, and his records.