Chris Rushworth came agonisingly close to claiming 10 wickets in an innings as Durham crushed poor Northamptonshire.
Middlesex were reduced to 64-7 in reply to Somerset's first-innings 523-9 declared on day two at Taunton.
Craig Kieswetter marked his return to action by digging Somerset out of a hole on day one against Middlesex.
Yorkshire clinched their first County Championship title since 2001 after wrapping up an emphatic victory over Notts.
Yorkshire will go into the final day against Nottinghamshire needing five more wickets to clinch the Division One title.
Yorkshire took a major step towards claiming the Division One title while Jonathan Trott starred for Warwickshire.
Yorkshire took a giant stride towards securing the LV= County Championship title on day one against Nottinghamshire.
Yorkshire know a win over Nottinghamshire will clinch them the LV= County Championship for the first time since 2001.
Ben Stokes smashed 164 as Durham beat Nottinghamshire by 83 runs in Saturday's Royal London Cup semi-final.
Ben Stokes was delighted to play a huge part in taking Durham to the final of the Royal London One-Day Cup.
Adil Rashid took 5-117 as Yorkshire completed a vital innings and 18-run victory over Lancashire at Old Trafford.
Yorkshire duo Adam Lyth and Adil Rashid claimed a record sixth-wicket stand as Lancashire were made to toil.
Yorkshire moved into a commanding lead against Lancashire as Paul Collingwood and Durham defied Nottinghamshire.
Hampshire have signed seamer Andre Adams on a short-term deal for the first three months of next season.
Yorkshire bowled Lancashire out for 278 in the Roses clash, while Nottinghamshire were left in trouble against Durham.
James Taylor hit a magnificent 146 not out as Nottinghamshire beat Derbyshire by 85-runs in the Royal London Cup.
Nottinghamshire have rewarded fast bowler Harry Gurney for his fine form with a new three-year contract.
Nottinghamshire's last-ball win earned them top spot in Group B and a home quarter-final in the Royal London Cup.
Vote for your favourite catch in the NatWest T20 Blast so far from our spectacular short-list of five.
Yorkshire beat Sussex by nine wickets at Scarborough to move six points clear at the top of the LV= County Championship.
Full-on Yorkshire are the pride of the County Championship, says David Lloyd, and deservedly so.