|LV= County Championship Division One, BrightonandHoveJobs.com County Ground|
|Sussex 405 beat Northants 116 & 204 by an innings and 85 runs|
|Sussex 23pts; Northants 2pts|
Sussex moved out of the Championship relegation places by beating Northants by an innings and 85 runs with five sessions to spare at Hove.
Pace bowler Steve Magoffin took 3-28 for match figures of 8-40 as they earned their first victory since April.
Resuming on 80-3, bottom club Northants lost four wickets in the first eight overs of the third day's play.
Steven Crook hit an unbeaten 52 off 48 balls but they were all out for 204 when Ben Brown stumped David Willey.
The win lifted Sussex from eight to fifth in the table, although Middlesex and Durham could both leapfrog them depending on the outcome of their games against Somerset and Yorkshire.
An eighth defeat in 10 games, the sixth by an innings, left Northants marooned at the foot of the table, 65 points behind Lancashire, but with a game in hand.
The damage was done on the second day when they were routed for 116 in their first innings and it looked like the end would be swift after nightwatchman Olly Stone was caught in the slips off Stefan Piolet.
Magoffin then struck three times in successive overs, having Matt Spriegel lbw offering no stroke, and Rob Newton and Kyle Coetzer caught behind by Ben Brown.
Andrew Hall fell to Matthew Hobden for 16, but Crook and Ben Duckett added 51 for the ninth wicket before the latter gave a bat-pad catch off spinner Ashar Zaidi.
Lunch was delayed with Northants nine down, and after Crook brought up a 47-ball half century, including a six and eight fours, the match came to an end when Willey became Zaidi's second victim.
Sussex cricket manager Mark Robinson:
"I am proud of my players for many different reasons.
"Bowling conditions on the first day were ideal but our top order batsman, and Ed Joyce in particular, showed a lot of guts to get us through the first session and set up a fantastic partnership by Luke Wright and Ben Brown.
"When you have 400 on the board you are always in the pound seats and then Steve Magoffin's opening spell when they batted is as good as you will see.
"I feel a bit for Northants because they have had a tough schedule which hasn't allowed them to regroup, but it was a ruthless performance by us."
BBC Radio Sussex's Adrian Harms:
"A first Championship win since mid-April for Sussex ended a run of eight matches without one.
"Steve Magoffin will rightly take the plaudits after another masterclass of seam bowling, as Northants never recovered from being 0-3 in their first innings.
"However, the Sussex top order all deserve credit for battling through the opening session on Sunday when the wicket was at its most lively, and laying a foundation for Luke Wright to score his magnificent 158."