SL remain winless after 35-un loss. New Zealand recovered from 27/4 to post 179 after being asked to bat.
New Zealand will look to finish a high by winning the one-off Twenty20 International against Sri Lanka as well.
Tons for Ross Taylor, Henry Nicholls as Black Caps sweep Sri Lanka ODI series.
Sri Lankan all-rounder Thisara Perera, who scored a 74-ball 140, was the last to depart.
Tim Southee to captain New Zealand side in shorted format against Sri Lanka.
New Zealand seal 45-run win after ton from Guptill and half-centuries from Williamson and Taylor, takes 1-0 lead.
Upbeat New Zealand take on Sri Lanka with eye on World Cup, scheduled to begin from 30 May.
New Zealand advance to third in Test Rankings
Trent Boult helps wipe out Sri Lanka tail as Black Caps wrap up series with record 423 runs victory.
Mathews injured as Sri Lanka were 231/6 at stumps, a mammoth 429 runs away from the target.