Kent 282 for 9 (Evison 136, Compton 103, Coad 3-16, Revis 3-57) beat Yorkshire 117 for 4 (Hill 35) by two runs (DLS method)
Superb centuries for Joey Evison and Ben Compton helped champions Kent recover from early strife and later survive a Matthew Revis hat-trick to get their Metro Bank One-Day Cup title defence off to a winning start against Yorkshire at soggy Scarborough.
The Spitfires, having slipped to 49 for 4 after 15 overs after being inserted, posted 282 for 9 before a trio of rain delays revised the home target to 261 in 43 overs, 235 in 35 and finally 181 in 24.
Kent only won this one by two runs on Duckworth Lewis Stern, owing to late drama. After the third delay, Yorkshire resumed on 53 for 2 after 11 overs and raced to 117 for four after 17, only for more rain to leave them three runs short of a winning target.
Ben Coad struck three times with the new ball in helpful conditions for Yorkshire, bowling his 10 overs straight through for 3 for 16.
But Evison and opener Compton played contrasting innings - 136 off 106 balls and 103 off 137 - to share Kent's List A record 219 inside 33 overs for the fifth wicket. All-rounder Revis then claimed a hat-trick as five wickets fell in the last 15 balls of the visiting innings.
Evison, 21, was the player of the match in last season's final win over Lancashire at Trent Bridge with 97 and two wickets, and he counter-attacked here to push on from 84 for 4 after 25 overs.
Having offered a tough chance to diving Dom Bess at midwicket on nought off Dom Leech, he hit three of seven sixes to leg, including one over wide long-leg off Ben Mike to reach his hundred.
Excellent Coad had opener Marcus O'Riordan caught at first slip and former team-mate Jack Leaning and then Harry Finch both caught behind on a nibbling pitch. George Hill, who also bowled his 10 overs straight, claimed the other early wicket.
Left-hander Compton clipped the only boundary which Coad conceded but was in rebuild mode.
Evison then whipped a six off Coad to begin the counter-attack. And by the time they both reached fifties, Kent were 143 for 4 in the 34th over.
Having regained a foothold in the innings, Compton then increased his tempo and was strong through the off-side en-route to his third career century off 135 balls.
But Evison had overtaken him in the early eighties and raced through the nineties to reach his second career ton first - reached off 84 balls (216 for four in the 42nd over).
But, with 300 on the cards, Revis limited the damage by getting James Bazley and Grant Stewart caught at deep square-leg and Hami Qadri bowled in the penultimate over.
Five wickets fell in the last 15 balls, including Evison and Compton, as Yorkshire's director of cricket Darren Gough watched on. He had taken two of the previous four List A hat-tricks for the county.
After mid-innings rain, Gough saw Yorkshire lose Fin Bean to Australian debutant Bazley's seam to the fifth ball of their chase, Qadri taking a smart catch at point.
But the Vikings, after a further brief stoppage, were recovering through wicketkeeper opener Harry Duke and his captain Shan Masood, who put on 49 to take the score to 52 for one after 10 overs.
Masood, back from Pakistan duty, was playing confidently for 31, however he was run out by an Evison direct hit at the non-striker's end from mid-on with the first ball of the 11th over.
More rain came almost immediately at 53 for 2, leaving Yorkshire needing 10 an over upon the resumption.
With the threat of more rain to come, Hill crashed the lion's share of 21 off a Matthew Parkinson over, only to fall caught behind for 35 off Bazley to leave Yorkshire narrowly short.