Aaron Finch has enjoyed a "fun ride" in his ODI career, after he announced his decision to step away from the 50-over format.

The 35-year-old played his 145th and final ODI for Australia on Sunday, and though he only managed five runs against New Zealand, his team nevertheless sealed a series whitewash in Cairns.

Finch's final 54 matches in the format came as captain, with the opener having revealed his decision to retire from ODIs prior to the match. He will, however, stay on as T20 captain ahead of Australia's defence of their world title next month.

His record in recent ODIs has been poor, with Finch becoming the first Australian to record five ducks in a calendar year in the format. In his final eight such matches, he managed just 31 runs.

Yet Finch was able to look back with pride at his long career.

"Pretty good, means I don't have to field 50 overs anymore," Finch quipped when asked how he was feeling.

"It's been a fun ride. I've loved every bit of it. Sitting around having a beer with your mates after winning a match or series is the thing I'll miss the most, but we'll enjoy tonight."

Finch added: "I want to thank everyone. The staff we've had, the captains I've had right from club cricket. All the players, it's such a special time.

"My wife and family, the support they've given me. My career has had plenty of ups and downs but to always have the support of the changing room is something I've felt my whole career."

While Finch was unable to go out with a flourish, Steve Smith – a potential replacement as ODI skipper – provided the bedrock for Australia to claim a 10th straight home ODI win over New Zealand.

Smith scored 105 from 131 deliveries, with support coming from Marnus Labuschagne (52) and Alex Carey (42), with the Black Caps falling short in the chase to lose by 25 runs.