After missing out on the Cup quarter finals for the first time since January 2014, Fiji responded on day two by thrashing Russia 31-5 and Kenya 45-5 before beating Wales 26-14 in the Challenge Trophy final.
RNZI reports a ninth place finish for the weekend means the Olympic champions finish third behind South Africa and England in the overall standings.
Samoa had lost 29-21 against Wales in their Challenge Trophy quarter final before bouncing back to beat Japan 33-7 and Russia 24-19 to claim 13th place for the weekend and the season.
Sir Gordon Tietjens' side also sealed their place at next year's Sevens World Cup in San Francisco.
Meanwhile Scotland retained their London title, coming from behind to beat hosts England 12-7.
Photo: World Rugby / Martin Seras Lima. Samoa's Tofatu Solia races clear of the Spanish defence at the London Sevens.