Ben Duckett and Kent’s Daniel Bell-Drummond equalled the second highest List A stand of all-time as England Lions sauntered to a 140-run victory over Sri Lanka A at Canterbury.

The pair shared an unbroken 367-run partnership from only 232 balls to lift their side to a mammoth total of 425 for one, with Duckett’s 220 not out from only 131 deliveries the record score for a Lions batsman – topping captain Dawid Malan’s 185 from last week against the same opponents.

Duckett recorded a 150-plus score for the second time in a week, following his unbeaten 163 against Pakistan A last Wednesday, as he and Bell-Drummond (171no) flayed the tourists’ bowlers to all parts.

The Lions were given a scare when Niroshan Dickwella and Mahela Udawatte put on 105 inside 15 overs for the opening wicket, but George Garton removed them both in the space of four balls en route to figures of four for 43 as Sri Lanka were all out for 285 in 47.3 overs.

After winning the toss and opting to bat first, the home side’s only setback of the innings came in the 12th over when Malan was stumped for 23 off Ramith Rambukwella.

Duckett thumped the first of his 29 fours from his very first ball to set the tone for an astonishing innings, which also contained six sixes, while Bell-Drummond ensured pressure came from both ends with some fluent strokes.

Northamptonshire batsman Duckett reached three figures first, off only 75 deliveries, and then cut loose shortly after Bell-Drummond brought up his century from 104 balls by pummelling Udara Jayasundera for six-four-four.

The left-hander was similarly dismissive of Thisara Perera, who has played 110 one-day internationals for Sri Lanka but conceded a chastening 101 runs from his 10 overs.

Perera was the bowler when Duckett brought up his double hundred with the first of four successive boundaries, and even though his final two balls were dots, the damage had been done.

Duckett and Bell-Drummond fell five runs short of the world record List A partnership set by Chris Gayle and Marlon Samuels in a one-day international in February last year, but they did equal the stand made by Morne van Wyk and Cameron Delport in South Africa’s domestic 50-over competition in 2014.

Despite the eye-watering total, Dickwella and Udawatte refused to fold and a series of boundaries early on gave Sri Lanka hope of an unlikely success, but Garton’s double strike in his opening over put the Lions back in the ascendancy.

Dickwella edged behind after a well-crafted 60 from 45 balls while Udawatte’s innings of 40 was ended when he was bowled by the left-arm seamer, who returned to end Thisara Perera’s cameo of 45 later in the innings.

Angelo Perera’s defiant 69 helped Sri Lanka avoid defeat by a wider margin but by the time he was seventh out, their hopes had already ended and they were all out with 15 balls of their innings remaining.