A scintillating performance from Sanath Jayasuriya has guided Sri Lanka to an 18-run victory in a rain afflicted Twenty20 international before a crowd of 12,000 at Wellington's Westpac Stadium.
Astle slammed four boundaries and a six to safely steer the Kiwis to their victory target of 116 with nine balls to spare after Sri Lanka were bowled out for 115 in the 19th over of their innings.
The two match series ended 1-1 after Sri Lanka won the first match in Wellington on Friday by 18 runs on the Duckworth-Lewis system after the game was abandoned because of rain.
James Franklin captured three early wickets and Andre Adams two as New Zealand reduced the visitors to 71-8 before Lasith Malinga (27) and Dilhara Fernando (21) combined with a late flurry to push the total past 100.
Brendon McCullum got the new Zealand innings off to a flying start when he smacked 28 at a run a ball and although Fernando claimed three quick wickets to reduce the home side to 86-5, Astle's late cameo sealed the result.
The teams, who also drew the test series 1-1, will play each other in five one-day matches, starting at Napier on Thursday.
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