Surrey 295 for 4 (Elgar 87, Roy 86, Foakes 84*) beat Essex 294 for 9 (Bopara 74, Chopra 61, Westley 54, Clarke 3-59) by six wickets
Jason Roy hit 86 from just 64 balls as Surrey eased to a six-wicket victory at Essex in the One-Day Cup.
Roy picked up four sixes and eight fours before he was caught behind off Neil Wagner. By then, he had shared in a stand of 127 in 22 overs with Dean Elgar who went on to hit a superb 87.
His effort, which spanned 95 deliveries, contained three fours and four sixes, and formed part of another century stand with Ben Foakes, who hiimself finished unbeaten on 84.
Essex's innings owed much to Varun Chopra, Tom Westley and Ravi Bopara, each of whom passed 50. Chopra, fresh from his 160 in the previous match against Somerset, continued his good form with 61 from 84 balls with the help of five fours.
He departed when he chipped spinner Scott Borthwick to short cover, the previous ball having accounted for Westley when he was caught at mid-on for 54 accumulated fr0m 50 balls; this innings contained two sixes among his five boundaries.
Bopara went on to make 74 from 71 deliveries, his fourth successive half-century in the competition, before he ran himself out in the penultimate over of the innings.
Essex's innings had slowed after the loss of Chopra and their inability to increase the tempo in the later stages of their innings proved fatal.
A total in excess of 300 seemed on the cards when they reached 257 for 5 with five overs remaining but they lost five wickets for only 38 runs in that time.
That included four wickets in 14 balls as the innings faded away.
Essex have now lost three of their opening five matches and they will need to win all three of their remaining games if they are to stand any chance of progressing in the competition