At club level, he has represented Taranaki, Petrarca Padova, Toulon, Sale Sharks, Lyon OU, Bordeaux Bègles and currently plays for Brive.

After showing impressive form for the Pacific Islanders that year, Koyamaibole was given a contract with New Zealand club Counties Manukau.

[3][4] When Fiji announced their 30-man squad for the 2007 Rugby World Cup, Koyamaibole was one of the most experienced members, one of only four players to have more than 30 caps at the time.

Kingsley Jones, Sale's director of rugby, described Koyamaibole as "a gifted athlete who is very mobile around the field" with "excellent discipline".

Koyamaibole was given a two-week ban starting on 26 January 2011, for kicking Saracens' Richard Wigglesworth during Sale's 28–22 victory over the club.