Durham boosted their LV= County Championship Division One survival hopes by completing an innings win over fellow strugglers Surrey.
The north-east side had responded to their visitors' first innings of 129 by making 310, and began day three at Chester-le-Street with a lead of 112 and needing only five wickets to seal the win.
Opener Rory Burns looked like the key man as he resumed on 28, but he added only another 11 before falling to Graham Onions and the lower order were able to offer only limited resistance, Scott Borthwick taking two wickets to wrap up victory by an innings and 38 runs.
Title-chasing Warwickshire were bowled out for 132 in reply to local rivals Worcestershire's 246 at Edgbaston.
Chris Russell took four for 43 on his first-class debut and Alan Richardson snared three for 36 as the Pears also gave themselves hope in the battle against relegation, despite Rikki Clarke's 61 for the hosts.
Nottinghamshire limped to 148 for eight as their first innings stretched into a third day of a rain-hit clash with Somerset.
Chris Read made 52 but Alfonso Thomas and Gemaal Hussain took three wickets each as the visitors struggled at Taunton.