COUNTY CHAMPIONSHIP DIVISION ONE, Emirates Ground:
Durham 372 & 361-6 dec beat Nottinghamshire 343 & 180 by 210 runs
Durham 21 pts, Notts 6 pts
Ben Harmison took all his four wickets in one inspired mid-afternoon burst
Nottinghamshire's County Championship title hopes suffered a hiccup as they were well beaten by reigning champions Durham at Chester-le-Street.
After resuming on 279-5, Phil Mustard (51 no) and Scott Borthwick (43 no) helped Durham declare on 361-6, setting Notts a victory target of 391.
But the visitors never got close, Ben Harmison (4-70) and Ian Blackwell (3-23) doing most of the damage.
Steven Mullaney weighed in with 64 as Notts were bowled out for 180.
Harmison went into this game having picked up just four first-class wickets this season, having not featured since May.
But, after taking two wickets in the first innings, he stormed to life after lunch with a spell worthy of his big brother, taking three wickets in four balls.
After removing opener Alex Hales, he then had Aussie Adam Voges caught behind first ball, before trapping Samit Patel in front and then later snaring Chris Read the same way.
Notts picked up six points from the fixture to go 22 clear at the top with two games left.
They remain favourites to take the title but face two tough final fixtures at home to third-placed Yorkshire next week (7-10 September), followed by the following week's trip to Old Trafford to face Lancashire.
After being set a target of 391 in 78 overs, on a pitch on which Durham added 82 in just over an hour in the morning, the visitors' attempts to bat out the day should have been assisted by the home side's injury concerns, which left their attack two short.
Already without Mark Davies, who was taking no further part after developing a sciatic nerve problem on the second day, Durham then lost Liam Plunkett, who limped off after bowling two overs with the new ball.
The meant Harmison's introduction into the attack in only the fifth over, at which point he conceded 24 in four overs before lunch.
But, with the score on 51-1, he suddenly got it right in his seventh over.
Hales pushed forward on 36 and edged to Michael Di Venuto at second slip before Voges did the same, this one a thinner edge to wicketkeeper Mustard.
The hat-trick ball was short and wide, allowing Patel to collect two easy runs, but the next delivery pinned him lbw on the back foot.
Blackwell then added a stand of 30 between Ali Brown (29) and Mark Wagh (18) by having both lbw either side of Harmison removing Read.
Blackwell then held onto a catch to remove Andre Adams off Mitch Claydon before Blackwell had Luke Fletcher caught at silly mid-off.
And when Mullaney, the only other Notts man to make double figures, was last out, that wrapped up Durham's fifth Championship win of the season to lift them back above Warwickshire into fifth.