Worcestershire 4-0 need 132 to beat Leicestershire
Worcestershire's push for victory was held up by the Leicestershire eighth wicket pair of Lewis Hill and Zak Chappell on the final morning of the Specsavers County Championship clash at New Road.
The Foxes began the day on 111-7 - just 22 ahead with Worcestershire seemingly closing in on a third successive win to further strengthen their promotion hopes.
But Hill, who was 18 not out overnight, and new batsman Chappell had other ideas and counter-attacked to good effect during a stand of 103 in just 23 overs.
Leicestershire extended their total to 220 all out to leave Worcestershire a 132 target.
Chappell was the dominant partner and he straight drove Indian spinner Ravichandran Ashwin for six to reach his half century - which also contained seven fours - off just 63 balls.
Hill offered solid support and his fifty was completed off 96 deliveries with five boundaries.
Worcestershire, whose skipper Joe Leach was unable to bowl through injury, struggled to make a breakthrough.
But the innings then ended swiftly with the loss of three wickets in four overs.
Chappell would have been disappointed at the manner his innings ended when he pulled a short ball from paceman Pat Brown to Brett D'Oliveira at mid on after making 66.
Brown struck again in his next over and Dieter Klein fell in similar fashion to Joe Clarke at mid wicket without troubling the scorers.
Ravichandran Ashwin then had Hill (60) caught by D'Oliveira on the deep square leg boundary..
Worcestershire openers Daryl Mitchell and Brett D'Oliveira negotiated one over from Ben Raine in reaching 4-0 by lunch.