Durham were unable to go three in three in the Metrobank One Day Cup – as they fell to a 35-run defeat against Lancashire at Blackpool.
84 from opener Emma Lamb and five wickets for 33 runs from left arm spinner Sophie Morris were the highlights for a jubilant Red Rose who have now won six of their eight games in the competition so far and sit second in the table while defeat for Durham leaves them fifth.
Lamb has been in fine form so far this season and she continued her hot streak as she cruised to a half-century from 62 balls.
With 20-year-old debutant Tilly Kesteven for company, the opening pair had built a first wicket partnership of 72 when Kesteven holed out to Suzie Bates at mid-on of Mady Villiers for 17.
Villers struck again when she enticed Katie Mack down the pitch with the Australian stumped for five.
Any chance of a Lancashire wobble was quickly settled by Seren Smale who joined Lamb in taking the score serenely to 142 before the third wicket fell when the opener was bowled by Katy Levick for 84.
Skipper Ellie Threlkeld edged Grace Thompson for 12 with Sophie Ecclestone doing the same soon after for two but when Smale was brilliantly caught on the boundary by Thompson for 37 off Villiers, the hosts had the platform at 192-6 with ten overs remaining.
Cameos from Kate Cross (24) and Tara Norris (15) gave the innings impetus with Phoebe Turner able to pick up some cheap wickets to finish with 3-41 as Lancashire were bowled out for 239 with two balls of the last over remaining.
Mahila Gaur struck early dismissing Emma Marlow without scoring.
But with Bates and skipper Hollie Armitage at the crease, Durham could still look at the target without trepidation and the second wicket pair cruised their way to a 50 partnership.
An excellent steepling catch from Cross off Grace Potts eventually accounted for Armitage for 47 and when Villiers departed for four, caught by Ecclestone off Sophie Morris, quickly followed by Mia Rogers, caught by Lamb to give Morris another wicket, the game was back in the balance at 90-4.
Ecclestone against Bates looked like the key contest and the England slow left armer looked to have the ball on a string as the New Zealander and fellow batter, Heath, survived numerous leg before appeals to take the score to 155 when Heath mistimed a drive off Gaur to Cross for 45.
Morris struck again to bowl Bates for 65 with one which kept low and suddenly Lancashire were favourites again with Durham on 170-6 and still requiring 71 runs for victory.
While most were looking to Ecclestone to make the inroads, it was fellow left-armer Morris who stole the spotlight, and she claimed her fourth victim with a caught and bowled to dismiss Katherine Fraser for one before snaring her first five wicket haul in List A cricket when she bowled Phoebe Turner for 13.
Cross returned to take the last wicket with her first ball as Mack juggled a catch on the boundary to leave Durham all out for 204.