NatWest Series, The Brit Oval: England 192-0 (24.5 overs) beat Bangladesh 190 all out (45.2 overs) by 10 wickets
Marcus Trescothick hit 100 not out in his 100th one-day international as England blazed to a 10-wicket win over Bangladesh to start the NatWest Series.
He and the newly-promoted Andrew Strauss (82 not out) put on a dominant display to get home with 25 overs left.
Earlier, Steve Harmison took 4-39 and debutant Jon Lewis 3-32 to bowl the tourists out for 190 at The Oval.
It could have been much worse but for a 76-run stand between Aftab Ahmed (51) and Mohammad Rafique (30).
Mashrafe Mortaza added an unbeaten 29 to frustrate England's bowlers late in an innings that was delayed three times by rain.
But an early finish was possible anyway as Trescothick and Strauss ran riot with 26 boundaries.
It was just the second time in 414 limited-overs matches that England have won by the maximum margin of wickets.
They also took a bonus point for the series league table by reaching their target inside the mandated 40 overs, but know more of a challenge awaits against Australia on Sunday.
First-change bowler Khaled Mahmud was taken for 21 in his first over, Trescothick hooking and driving three boundaries to pass 50.
He had to sweat on 99 before reached his ninth one-day ton - his third at this venue - from the 76th delivery faced, with England four away from victory.
Strauss, opening for just the second time in the shorter form of the game, had pulled Nazmul Hossain for six to take England past 100 in the 13th over.
The left-hander took over from Geraint Jones, who has averaged less than 20 in seven matches at the top of the order since the start of the series in South Africa.
It was always going to be difficult for the Bangladesh top order after they were put in to bat by Michael Vaughan in overcast conditions.
Lewis took three wickets on his 50-over debut
Lewis, who took four wickets in his England Twenty20 debut on Monday, struck with successive deliveries in his second over.
Javed Omar Belim was lbw swinging across the line and Mohammad Ashraful edged his first delivery to second slip, where Andrew Flintoff collected.
Harmison bowled short and with hostile intent to run through the middle order with three wickets in four overs.
Included in the haul was captain Habibul Bashar, caught once again off a top-edged cross-bat shot.
Aftab was undaunted, though, and kept his concentration in a classy half-century, his third at this level.
He took just 56 balls over it, including sixes off Paul Collingwood into the new OCS Stand at the Vauxhall End and a pull shot off the below-par Andrew Flintoff.
Rafique was equally aggressive, profiting from several thick-edges in a 57-ball innings, which also included a six off Collingwood, although the medium-pacer displayed an impressive range of variation.
Bangladesh could have felt pleased with their recovery on what appeared to be a difficult day for batting, but it was soon put in context by England's dominance.