It was also Sri Lanka's first win in an ODI series over the Black Caps in 12 years.
Kusal, 29, struck a career-best 143 and Avishka hit 100 as Sri Lanka posted a commanding 324-5 in 49.2 overs before rain stopped play.
Bangladesh bowling coach Andre Adams was not impressed with his side letting opportunities slip through dropped catches on Day 1 of the second Test against Sri Lanka in Chattogram on Saturday.
Bangladesh skipper Najmul Hossain Shanto’s bizarre review on Day 1 of the second Test against Sri Lanka has left everyone baffled.
Bangladesh will take on Sri Lanka in the first ODI of the three-match series at the Zahur Ahmed Chowdhury Stadium in Chattogram today, hoping to avenge the series loss in the Twenty20s and also regain their groove in the 50-over format.
Sri Lanka won the toss and elected to bat Saturday in the first of three ODI matches against Zimbabwe.
Sri Lanka's white ball series against Zimbabwe starting at the weekend is a chance for the team to show improvement after last year's dismal World Cup campaign, skipper Kusal Mendis said Friday.
Sri Lanka cricket selectors Wednesday named different captains for the Test, one-day international and Twenty20 sides ahead of tours by Zimbabwe and Afghanistan.
Sri Lanka appointed all-rounder Wanindu Hasaranga as the captain of their Twenty20 side on Saturday ahead of their series against Zimbabwe next month, while batsman Kusal Mendis will lead their one-day international team.
Mendis is his country's marathon man, making 76 and 122 in the two defeats to South Africa and Pakistan.
In-form Kusal Mendis hit his third one-day international century as Sri Lanka piled up the runs against Pakistan in the World Cup on Tuesday.
Black Caps captain Tim Southee won the toss in Christchurch, where conditions were ripe for his attack to strike, but instead it was Sri Lanka's band of classy batsmen who dominated
Kusal Mendis' fiery start and a key lower-order knock by Bhanuka Rajapaksa powered Sri Lanka to a four-wicket win over Afghanistan in their Asia Cup Super Four contest on Saturday.
Kusal Mendis' fiery start and a key lower-order knock by Bhanuka Rajapaksa powered Sri Lanka to a four-wicket win over Afghanistan in their Asia Cup Super Four contest on Saturday.
Sri Lankan batsman Kusal Mendis has been cleared to continue play in the ongoing second Test against Bangladesh in Dhaka after complaining of chest pain that required hospital treatment.
Sri Lanka’s Kusal Mendis was taken to hospital after he pulled up while fielding at slips, holding his chest, the Daily Star has learned.
Kusal Mendis's 68-run knock, where he scored quick runs in a bowling friendly wicket, proved to be massive for Sri Lanka, says batting coach Thilan Samaraweera