An unbeaten century by Jason Blake helped to blast holders Norwich into tonight's draw for the quarter-finals of the Bob Carter Cup. Blake scored 106 not out off 88 balls as Norwich made 382-6 from their 60 overs after being asked to bat first at North Runcton, who were then dismissd for 222 with Ollie Sutton taking 4-52.

Openers Dominic Matarazzo (52), F Sutton (61) and Alistair Horlsey (55) all got half centuries in Norwich's assault on the Runcton bowling while M Lyanage fell one short of his century in reply.

Last year's runners-up Sprowston were back on the giant-killing trail with an eight-wickets win at Horsford. Andy Hanby (3-53) helped bowl out the hosts for 122 before Rob Purton (47) and Jon Glozier (46 not) eased the Alliance title chasers home.

The biggest individual score of the round was Richard Sims' unbeaten 168 – off 167 balls – in Swardeston's 350-5 against Acle. The bulk of his runs came in a fourth-wicket partnership of 218 with Ben Shearing (68). Lewis Denmark then took five for 52 as Acle were dismissed for 143.

Vauxhall Mallards began their quest for an 11th Bob Carter triumph by beating Downham by eight wickets. Caleb Futter (3-37) and Rahul Dewan (4-28) helped dismiss Downham for 180 (Patrick Yates 44) – before an unbroken third wicket stand between Matt Plater (84) and Dewan (61) swept the Ducks home.

Great Witchingham (231) beat Brooke (161) by 70 runs with the highlight 60 from Carl Rogers.

There was a thriller at Diss, where Fakenham fell three runs short in pursuit of the Diss total of 199-9, finishing on 196-9. No problems, though, for Old Buckenham, who made 296-7 led by James Alexander (76) and Andy Lawrence (61) before dismissing Garboldisham for 185.

Mattishall are the lowest-ranked of the survivors having won their all Alliance Division One clash with Stow with nine balls to spare.

nThe draw will be live on tonight's cricket show on Radio Norfolk.