County Championship Division One, Hove
Somerset 134 & 397-5 beat Sussex 221 & 308 by five wickets
Somerset 19pts, Sussex 4pts
Somerset completed the second highest run chase in their history as they pulled off a five-wicket County Championship win over Sussex.
Somerset began the final day at Hove on 155-4, needing 241 more to win.
James Hildreth added 80 with Alex Barrow (40) before an explosive 166-run stand with Peter Trego inside 25 overs that took the game away from Sussex.
Hildreth finished unbeaten on 101, while Trego hit 12 fours and four sixes in his 89 not out off 72 balls.
Highest successful County Championship run chases
502-6 - Middlesex v Notts 1925
479-6 - Somerset v Yorkshire 2009
461-3 - Notts v Worcestershire 2001
455-8 - Sussex v Gloucestershire 1999
453-9 - Durham v Somerset 2004
Somerset's victory means that they go into the final round of matches in third, eight points behind surprise package Middlesex and a point ahead of Sussex in the race to finish second behind new county champions Warwickshire.
They entertain relegated Worcestershire in their final game at Taunton, while Sussex travel to in-form Durham.
Somerset, who lost four wickets in the last half-hour on Thursday, looked assured on the final morning, but Sussex got their breakthrough with the new ball when Barrow edged Steve Magoffin to Matt Prior at slip.
It proved to be their last success as Somerset sped to their target after lunch.
VIEW FROM THE COMMENTARY BOX
BBC Sussex's Kevin Smith:
"This was a fantastic victory for Somerset in a game that they were frequently second best in.
"Shot out for just 134 on day two, then with Sussex 317 ahead with eight wickets in hand, the hosts were guilty of failing to capitalise and ultimately paid the price.
"With a depleted batting line-up, all Somerset's established batsmen had to stand up and they duly did."