Nathan Smith continued his excellent form with the bat and Ben Gibbon struck his maiden fifty but Worcestershire faced up to some high quality bowling from Dan Worrall as their Vitality County championship match with leaders Surrey ended in defeat on the third day at the Kia Oval.
Smith struck his third half century in his last five knocks and his 60 was his highest score for Worcestershire with Gibbon providing sterling support during a partnership of 71 for the ninth wicket.
Gibbon then went on the offensive and completed his maiden first class fifty from 46 balls with the aid of three sixes in an over from Dan Lawrence.
It was admirable resistance by the lower order as Worcestershire, who had been 102-8, reached a respectable 231 all out.
But the early damage had been done by who Worrall reproduced the form which brought him 6-22 in the first innings.
He picked up three early wickets after Worcestershire had been set a demanding 513 target and ended with 4-35 to give him match figures of 28-10-57-10.
The entire five-pronged quality attack maintained the pressure on a still helpful pitch and demonstrated why Surrey are setting the pace at the top of the table.
For Worcestershire most of the plus points came on the bowling side before the late Smith-Gibbon onslaught with Matthew Waite again impressing and having a match analysis of 31-6-88-6.
It was also encouraging to see Yadvinder Singh end with four wickets on his debut appearance for the club.
They will now look to bounce back when they return to New Road on Friday for the first time this summer to face Nottinghamshire.
The second new ball was taken at the start of the third day with Surrey 342-5 from 86 overs and Gibbon broke through in the second over.
Dan Lawrence (87) went for a pull and picked out the safe hands of Smith at deep mid wicket.
Jordan Clark survived a confident shout for a caught behind off the again impressive Matthew Waite but the Worcestershire all-rounder soon picked up two wickets.
Clark was within two runs of his second hundred of the season when he was anchored in the crease on the back foot and lbw.
Gus Atkinson (4) was then dismissed in the same fashion by a ball of full length after attempting a drive.
Yadvinder came into the attack and quickly wrapped up the innings.
Sean Abbott (38) was deceived by a slower ball and was through his shot before losing his leg stump.
Then Worrall (2) was beaten all ends up by a straight delivery and two stumps went flying out of the ground to wrap up the innings.
Yadvinder finished with 19.3-1-103-4, Waite 19-2-69-3 and Gibbon 27.3-102-3.
Worcestershire launched their reply 40 minutes before lunch and Jake Libby turned Kemar Roach through mid wicket for the opening boundary.
But Gareth Roderick (1) was unfortunate when he flicked at a leg side delivery from Worrall and feathered through to keeper Ben Foakes.
Kashif Ali leg glanced Roach for four in the final over before lunch when Worcestershire reached 22-1 from nine overs.
Kashif (12) fell to Kemar Roach shortly after the resumption, turning the West Indian into the hands of Dan Lawrence at leg gulley.
Libby (13) prodded at a fuller ball of late movement from Worrall and was caught by Foakes and then Adam Hose (1) was undone by a delivery from the same bowler which shaped away and was another caught behind victim.
Club Captain Brett D’Oliveira (13) drove a delivery from Gus Atkinson backward of square to the boundary but was bowled by the next delivery which was full and straight and 88mph.
Waite (12) drove at a Sean Abbott ball which moved away and provided Foakes with another catch and then Worrall returned and nipped one back to trap Rob Jones (14) lbw.
Smith adopted an aggressive approach with a succession of boundaries.
He turned Sean Abbott off his legs for four and then produced a back foot punch through the covers off the same bowler to the ropes.
Smith also cover drove and clipped Worrall through mid wicket for further fours.
Joe Leach (6) helped him add 27 before falling to the Foakes-Roach combination.
But Gibbon joined Smith and provided strong resistance in adding 43 with some aggressive strokeplay in the session before a delayed tea.
Smith went to a 54 ball fifty immediately after the players returned with a six and a single off spinner Dan Lawrence.
He was eventually caught for 60 off the same bowler at wide long on but Gibbon then went on the attack.
Three sixes in an over from Lawrence costing 25 runs took Gibbon to a 46 ball half century.
He raced onto 75 and continued to pepper the boundary until he attempted a reverse sweep against Lawrence and was caught at deep cover.
Gibbon struck four sixes and seven fours to leave Yadvinder unbeaten on 14 after helping add 58 for the 10th wicket.
