England beat Sri Lanka by 122 runs to win the fifth and final one-day international in Cardiff on Saturday. Victory saw England take the series 3-0, with one tie and one no result.
England, sent into bat made 324 for seven, with Joe Root top-scoring with 93 and sharing a stand of 109 with Jos Buttler (70).
Sri Lanka off-spinner Danushka Gunathilaka took an ODI best three for 48.
Chasing 325 to win, Sri Lanka were dismissed for 202 with more than seven overs remaining in their innings.
Dinesh Chandimal (53) was the only Sri Lanka batsman to pass fifty.
England left-arm paceman David Willey took four for 34, including the last three wickets in the space of seven balls, after fast bowler Liam Plunkett had again made inroads on his way to three for 44.
Sri Lanka's tour concludes with a one-off Twenty20 international against England at Southampton on Tuesday.
England: 324-7(J Root 93, J Buttler 70, J Vince 51; D Gunathilaka 3-48), Sri Lanka 202, 42.4 overs (D Chandimal 53; D Willey 4-34, L Plunkett 3-44)
Result: England won by 202 runs
Series: England win five-match series 3-0