龍成山 · Sandanme · Dewanoumi stable · active
| Highest rank | Sandanme |
| Stable | Dewanoumi stable |
| From | Tokyo-to, Hino-shi |
| Born | 1991-12-12 |
| Height | 172.5 cm |
| Weight | 135.3 kg |
| First tournament | March 2007 |
The ring name is written 龍成山. Taken character by character:
| 龍 | dragon |
| 山 | mountain |
⚠️The character 成 is left out above: we do not yet have a meaning for it that we are sure of, and we would rather show a gap than a guess.
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 →
Ryuseiyama has fought 769 recorded bouts, winning 378 and losing 391 — a winning rate of 49.2%.
| Technique | Japanese | Wins | Share |
|---|---|---|---|
| Frontal push out | 押し出し | 166 | 43.9% |
| Frontal force out | 寄り切り | 43 | 11.4% |
| Hand pull down | 引き落とし | 38 | 10.1% |
| Thrust down | 突き落とし | 33 | 8.7% |
| Slap down | 叩き込み | 29 | 7.7% |
| Frontal push down | 押し倒し | 17 | 4.5% |
| Rear push out | 送り出し | 13 | 3.4% |
| Frontal crush out | 寄り倒し | 7 | 1.9% |
Counted from his winning bouts in this database. English names follow NHK WORLD-JAPAN. All 87 techniques →
| Opponent | Bouts | Won | Lost |
|---|---|---|---|
| Daijo Kotaro | 10 | 5 | 5 |
| Shobushi Kanji | 8 | 7 | 1 |
| Teraoumi Daishi | 8 | 5 | 3 |
| Mitozakura Shigetaka | 8 | 7 | 1 |
| Asanojo | 7 | 2 | 5 |
| Kotofubuki Saburo | 6 | 5 | 1 |
| Kiryu Mikiho | 6 | 3 | 3 |
| Gorikiyama Taro | 6 | 2 | 4 |
| Tournament | Rank | Record |
|---|---|---|
| July 2026 | Sandanme 60 West | 2–5 |
| May 2026 | Sandanme 80 East | 4–3 |
| March 2026 | Sandanme 52 East | 2–5 |
| January 2026 | Sandanme 69 East | 4–3 |
| November 2025 | Jonidan 8 West | 4–3 |
| September 2025 | Sandanme 75 East | 3–4 |
| July 2025 | Sandanme 26 East | 0–7 |
| May 2025 | Jonidan 4 West | 6–1 |
| March 2025 | Sandanme 48 East | 1–6 |
| January 2025 | Sandanme 34 East | 3–4 |
| November 2024 | Sandanme 52 East | 4–3 |
| September 2024 | Sandanme 68 East | 4–3 |
| July 2024 | Sandanme 88 East | 4–3 |
| May 2024 | Jonidan 34 West | 5–2 |
| March 2024 | Jonidan 11 East | 3–4 |
The Japanese side of this site carries seven pages on Ryuseiyama: 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.