Rain frustrated Nottinghamshire's hopes of claiming their fourth LV County Championship win of the season, as their match with Lancashire ended in a draw.
Arul Suppiah's career-best 131 and an exhilarating 54-ball century from Peter Trego led Somerset to an astonishing four-wicket over Yorkshire.
Durham secured their fourth victory this morning, beating Worcestershire by five wickets with Michael di Venuto scoring 100 not out off 123 balls.
Kent claimed Gloucestershire's last five wickets within two hours on the final day at Beckenham to wrap up a 76-run win.
The prospect of an exciting finish at Derby was ended when heavy rain prevented any play on the final day between the hosts and Leicestershire.
LV County Championship Division One leaders moved to within striking distance of victory in their match against Worcestershire at Chester-le-Street.
A thrilling finish is in prospect at Derby after a dramatic third day in which 15 wickets fell - six of them to Iain O'Brien.
Division Two leaders Gloucestershire are facing a last day County Championship defeat against Kent at Beckenham.
Nottinghamshire need nine wickets on the final day to claim their fourth LV County Championship Division One win of the season.
Mark Ramprakash underlined his status as the most successful batsman the County Championship with another hundred against Middlesex.
Liam Plunkett was again Durham's enforcer as they closed in on a fourth successive LV County Championship Division One win.
Joe Sayers hit his second County Championship century of the season as Yorkshire built steadily on a position of strength at Taunton.
A round-up of day two's action in both divisions of the LV County Championship.
Steven Kirby and Simon Cook put in the hard work in the sun as bowlers dominated the second day of the Championship clash between Kent and Gloucestershire.
Mal Loye's highest LV County Championship score in more than two years prevented Lancashire from caving in to accurate Nottinghamshire bowling.