A career-best knock from Hong Kong captain Babar Hayat inspired his side to a seven wicket victory and series honours over Papua New Guinea and in the rain-affected third and day cricket international.
The Barramundis posted a competitive 244 for 7 batting first, with Mahura Dai blasting 76 not out from 62 balls down the order, including six fours and four sixes.
Sese Bau continued his strong form with 44 runs, while Tony Ura and Vani Morea put on 56 for the first wicket.
Anshuman Rath was the pick of the home bowlers, snaring three wickets for just 25 runs conceded off his ten over spell.
In reply, the hosts were struggling at 61 for 3 in the 14th over before 19-year-old Rath joined his captain at the crease.
The pair had put on 109, taking Hong Kong to 170 for 3 when rain stopped play in the 33rd over.
Set a revised target of 178 following a one hour delay, Rath brought up the win and his fourth ODI fifty with a boundary.
He finished on 52 not out to earn man of the match honours, while Babar Hayat was named man of the series after scores of 77, 0 and 82 not out.