Ikuma Hoshino

Japanese judoka

星野育蒔

Born

6 November 1981, Wakayama Prefecture

Citizenship

Japan

Sport

judo

Occupation

judoka

Ikuma Hoshino (星野 育蒔, hoshino ikuma; born on (1981-11-06)November 6, 1981) is a retired Japanese female mixed martial arts (MMA) fighter and judoka. Her real name is Mariko Yamanishi (山西 真理子, yamanishi mariko). Her nicknames are natural grappling girl (天然格闘少女, tennen kakutō shōjo) and Mar★tin (マァ★ティン, maa ★ tein; occasionally transliterated as Marting Star).

She participated in MMA promotions ReMix, Smackgirl, Shooto and Ax.

External links

• Wikipedia
• Sherdog
• Wikidata

Facts from Wikidata Q11513175 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.

Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.