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.
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.
Kane Williamson converted his maiden century for Yorkshire into a fine 189 to put the home side on top against Sussex.
Paul Horton's 114 and Ashwell Prince's unbeaten half-century helped Lancashire make a spirited response to Durham's 340.
A battling century from Sussex captain Ed Joyce frustrated Championship leaders Yorkshire at Scarborough.
Sussex defeated Somerset in the only one of six Royal London One-Day Cup fixtures to beat the bad weather on Sunday.
Phil Mustard scored a fine half-century as Durham condemned Glamorgan to a third straight Royal London Cup defeat.
Doug Bollinger claimed 5-35 as Kent eased to a six-wicket win over Glamorgan in the Royal London One-Day Cup.
Sussex claimed an unlikely three-wicket victory over Durham, while a thriller between Surrey and Kent ended in a tie.
Nottinghamshire and Somerset remain unbeaten in Group B of the Royal London One-Day Cup after a tie at Trent Bridge.
Somerset enjoyed a winning start to their campaign in Group B of the Royal London Cup, while Glamorgan saw off Surrey.
Glamorgan secured the last quarter-final spot in the South Group, while Sussex's Luke Wright made a record 153 not out.
Full-on Yorkshire are the pride of the County Championship, says David Lloyd, and deservedly so.