Click here for the commentary from the first one-dayer between West Indies and Sri Lanka of the Celkon Mobile Cup tri-series.
Narine picked up 4 for 40, while Gayle made a magnificent 109 as West Indies chased down Sri Lanka's target of 209 with six wickets in hand.
This is the first non-bilateral series played in the region by ICC full-member nations since Pakistan and Zimbabwe toured together in 2000.
West Indies: Chris Gayle, Johnson Charles, Darren Bravo, Marlon Samuels, Dwayne Bravo(c), Kieron Pollard, Denesh Ramdin(w), Darren Sammy, Sunil Narine, Ravi Rampaul, Kemar Roach
Sri Lanka: Upul Tharanga, Mahela Jayawardene, Kumar Sangakkara(w), Dinesh Chandimal, Angelo Mathews(c), Lahiru Thirimanne, Jeevan Mendis, Nuwan Kulasekara, Rangana Herath, Ajantha Mendis, Lasith Malinga