Mahela Jayawardene hit his first one-day century in two years as Sri Lanka thumped Pakistan by six wickets on Monday to grab a winning 3-0 lead in the five-match series.

The former captain made 123 and shared an opening stand of 202 with Upul Tharanga (76) as the hosts cruised past Pakistan's challenging 288-8 in the 47th over of the high-scoring match.