All-rounder Mark Wood shone to rally Durham against Kent on his return to County Championship action from a heel injury.
Kent skipper Sam Northeast scored more than half of his side’s runs before he was last out for 110 in the Specsavers County Championship match at Chester-le-Street. Graham Onions took 6-62 as the hosts bowled out Kent for 206.
That gave Durham a first-innings lead of 11 and they had reached 57-2 in their second by the close.
Durham were also indebted to the all-round efforts of Mark Wood on his comeback from the heel injury which had sidelined him since England’s second Test against South Africa in mid-July.
His career-best 72 not out rescued Durham from 77-7 in the morning and he followed up with 3-48.
Riki Wessels hit 60 from 79 balls as Nottinghamshire reached 138-5 in their second innings, a lead of 88 at Worcestershire.
The visitors wound up 193 all out in their first innings, with Joe Leach taking 3-47. Ed Barnard’s 55 and Ben Cox’s 47 from 43 balls carried Worcester to 243, with Steven Mullaney snaring 4-31 for Notts.
Rory Kleinveldt’s 5-50 helped Northamptonshire squeeze Sussex to 172 all out, with the follow-on enforced.
Northants capped a fine first innings on 426 all out before lunch, with Luke Procter hitting 57.
Sussex ended a tough day at 34-1 in their second innings, leaving Northants well in control with a 220-run lead.
Gareth Roderick and Chris Dent hit 57 apiece as Gloucestershire took control against Leicestershire.
Mark Cosgrove turned his overnight 38 in 92 but Leicester wound up 222 all out, with Josh Shaw taking 4-54. By the time bad light stopped play Gloucester had reached 218-3.
Derbyshire and Glamorgan were frustrated for a second day running when no play was possible at Derby.
Although the County Ground was bathed in sunshine at the scheduled start, parts of the outfield were still extremely wet after Tuesday’s heavy rain and the umpires abandoned play for the day after an inspection at 11am.