Durham clinched a dramatic one-wicket victory over Yorkshire with injured last man Brydon Carse hitting the winning runs.
Warwickshire underlined their County Championship title-chasing credentials by completing a four-wicket win over fellow challengers Essex inside three days.
England seamer James Anderson received treatment for a "minor issue" during Lancashire's County Championship match against Somerset.
Seamer Tim Murtagh claimed a 10-wicket match haul to top 1,000 wickets in all formats for Middlesex as they comfortably beat Kent in the County Championship.
Round-up of Friday's County Championship action as Jamie Smith helps put Surrey in control against Warwickshire.
Defending champions Surrey reduce Warwickshire to 143-8 as Kemar Roach takes 3-31.
Middlesex secured their first win of the season with a thrilling four-wicket victory over Nottinghamshire at Lord's with an over to spare.
England opener Zak Crawley hit a superb 170 to help Kent to 342-7 on day three of their County Championship clash against Essex at Canterbury.
James Anderson clinched the 54th five-wicket haul of his first-class career before Lancashire opener Keaton Jennings hit an unbeaten century.
England opener Ben Duckett notched a first hundred of the season on the opening day of Nottinghamshire's County Championship match against Middlesex.
Ollie Pope and Dom Sibley shared an unbroken 193-run second wicket partnership, as Surrey beat Hampshire by nine wickets at the Kia Oval.
Matthew Potts says Durham will try and do for county cricket what England have done for the Test game, replicating the so-called 'Bazball' blueprint.
England have appointed Neil Killeen as their new men's elite pace bowling coach with the 47-year-old leaving Durham after 30 years.
Former England assistant coach, Paul Farbrace, has been announced as the new head coach of Sussex .
Check out the fixtures for the LV= County Championship in 2023, with the season running from April 6 until September 29.
Durham have announced the shock departure of record first-class wicket-taker Chris Rushworth, who is relocating for personal reasons.
Jofra Archer has retained his England central contract, despite not having played since March 2021, while Rory Burns has lost his.
Middlesex clinched promotion back to Division One of the County Championship after a final-day washout against Worcestershire.
All of the action from day two of the final round of County Championship matches in Divisions One and Two.
All of the action from day one of the final round of County Championship matches in Divisions One and Two.