He surpassed his elder brother Naritane who succeeded the head of Chiba family, in terms of their official ranks; Tsunehide was promoted to Shimousa no kami, a higher rank to Naritane's Chiba no suke (assistant governor of Chiba Province, also called Shimousa no suke), while Tsunehide later achieved the position of Kazusa no suke, the highest rank official of Kazusa Kokuga (territories governed by provincial government office) designated as Shinno-ningoku (provinces whose gubernatorial posts were reserved as sinecures for imperial princes).
官位などは宗家を継いだ兄・成胤を越え、更には千葉介（下総介）の上官である下総守、ついで親王任国である上総国衙の最高の地位である上総介の地位を得て宗家をしのぐ地位を獲得するに至った。