After winning their first two games, Papua New Guinea's women finished off the East Asia Pacific regional qualifier in Samoa unbeaten.
After all teams had a rest day on the 16th, Papua New Guinea got a further day off on Sunday as Japan took on the hosts. Samoa batted first after winning the toss, and an innings of 56 from Regina Lili'i helped them post a total of 207-8 from their 50 overs.
Lili'i then completed a fine all round performance by taking 3 wickets for just 8 runs in nine overs as Japan were bowled out for 181, losing by 26 runs.
Papua New Guinea were then back in action on Monday, knowing that a win over the hosts would secure their place in the global qualifier. Samoa won the toss and chose to bat first, and the visitors ran them over, bowling them out for just 95, Ravina Oa taking 3-19.
PNG then contrived to lose seven wickets in reply as they knocked off the required runs in 38.1 overs to win by three wickets and qualify for the next stage of World Cup qualification.
Two matches remained in the tournament, with Papua New Guinea beating Samoa by 52 runs in a rain-shortened game and Samoa beating Japan by 3 wickets.
Samoa beat Japan by 26 runs
Samoa Cricket Sports Ground, 17 July
Samoa 207-8 (50 overs, R Lili'i 56, V Andrew 42, L Bourne 35)
Japan 181 (46.2 overs, M Yanagida 45, R Lili'i 3-8)
Samoa lost to Papua New Guinea by 3 wickets
Samoa Cricket Sports Ground, 18 July
Samoa 95 (39.3 overs, P Mulitalo 35*, R Oa 3-19)
Papua New Guinea 96-7 (38.1 overs)
Papua New Guinea beat Japan by 52 runs(DLS)
Samoa Cricket Sports Ground, 20 July
Japan 105-9 (50 overs)
Papua New Guinea 91-2 (25.1 overs, K Oala 52*)
Samoa beat Japan by 3 wickets
Samoa Cricket Sports Ground, 21 July
Japan 135-8 (50 overs)
Samoa 138-7 (43 overs, L Telea 49, M Yanagida 3-32)