Northamptonshire can reach the quarter-finals of the Royal London One-Day Cup at Durham's expense with victory over Yorkshire in their final Group A game on Tuesday.
The Steelbacks defeated Gloucestershire by four wickets on Monday, recovering from an unconvincing period during their chase which saw them slip to 143 for five, to surpass their opponents with a score of 217 for six from 41 overs. Opener Josh Cobb led from the front with 58 from 83 balls, after the visitors had posted 215 all out in 49 overs at the County Ground.
Defending champions Durham, with a score of 247 for eight, had earlier beaten Derbyshire, who were 192 all out, by 55 runs. John Hastings' four for 24 was crucial in them avoiding elimination.
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Warwickshire notched 218 for six, largely thanks to Will Porterfield's 100, en route to a four-wicket win over Sussex with 20 balls remaining. The Bears require victory over the in-form Kent on Tuesday, and for other results to go their way, to progress from Group B.
Lancashire, in contrast, need no favours. With a score of 301 for four they overcame Hampshire - 272 all out - by 29 runs at the Ageas Bowl to secure their place in the quarter-finals. A win for Hampshire would instead have taken them into the last eight.
Middlesex beat Glamorgan by eight wickets at Lord's, Dawid Malan smashing 156 not out - including 18 fours and four sixes - to help the hosts reach 255 for two from 39.4 overs in response to the visitors' 251 for nine.
Worcestershire registered their first Group A triumph, needing just 32 overs to get past Leicestershire's score of 172 all out. Tom Fell and Joe Clarke finished with unbeaten half-centuries in the eight-wicket win at New Road.
There was also a victory for Somerset, who cruised to 273 for seven to defeat Surrey - who had managed 267 all out - by three wickets, with 20 balls to spare, at Taunton.
Finally, Sam Billings' knock of 118 not out guided Kent to a five-wicket success against Nottinghamshire at Trent Bridge. James Taylor had hit 109 and Alex Hales 81 to help Nottinghamshire post 335 all out, but Kent reached their target with eight balls remaining.