Test opener Ben Duckett helped Nottinghamshire proceed their strong begin to the season, scoring an unbeaten half-century as they swept aside Sussex by nine wickets.
Duckett, slotting in at three, made 59 not out from just 31 balls as he clubbed 4 sixes and 6 fours in day three at Trent Bridge.
Captain Haseeb Hameed made a sturdy 62no because the Rothesay County Championship Division One pace-setters hunted down a goal of 148 for the lack of only one wicket to open up a 10-point lead at the highest.
Seventeen-year-old spinner Farhan Ahmed had earlier dismissed Sussex skipper John Simpson and Ollie Robinson to finish second-innings figures of 4 for 54.
Defending champions Surrey also hurried to victory against Somerset, whose early-season woes continued on the Kia Oval.
The Brown Caps skittled their visitors for 119 in lower than 36 overs, with Dan Worrall and Jordan Clark taking three low-cost wickets apiece, leaving an easy chase of 36.
England vice-captain Ollie Pope was dismissed for one run for the second time within the match, a bump back to earth after a century last week, but international team-mate Jamie Smith was available to hitting the winning runs on his return to county cricket for an eight-wicket win.
Division Two
In Division Two, leaders Leicestershire got here through nail-biting finish against Gloucestershire with a tense two-wicket success.
The Foxes took eight for 63 as the house side lost their way with an under-par 152 all out. Ian Holland claimed 4 for 32 and the returning Josh Hull nabbed two more scalps on his comeback appearance.
Pursuing a modest 143 for victory, Leicestershire squeaked home eight down, with a battling 47 from Ben Cox the decisive contribution.
Dominic Goodman was unlucky to be on the losing side as he struck 4 times with the brand new ball to take his match tally to nine for 87.
Within the only game heading heading into the fourth and final day, Middlesex were forced to follow on by Derbyshire.
They were bowled out for 315 in reply to 472, Zak Chappell collecting 4 for 55 as Ben Geddes and Jack Davies hit fifties.
They were 60 for one after being sent back in, reaching stumps 97 behind.
