Pakistan beat Sri Lanka by five wickets in the third and final day-night international in Karachi Wednesday, taking the three-match series 2-0.
Sri Lanka were lifted to 297/9 in their 50 overs opener Danushka Gunathilaka scoring a career best 133 before Pakistan reached their target in 48.2 overs.
Fakhar Zaman led the way with 76 while fellow opener Abid Ali scored 74 and Haris Sohail 56.
Pakistan won the second game by 67 runs while the first match was rained off without a ball being bowled, both in Karachi.
