An unbroken fifth-wicket stand of 109 between Amy Satterthwaite and Ellie Threlkeld was the second highest partnership in Kia Super League history and helped Lancashire Thunder secure a notable Roses 33-run win at Emerald Headingley.
The Thunder recovered from 25 for four to post 134 for four, with New Zealander Satterthwaite 57 not out and wicketkeeper Threlkeld unbeaten on 53 amidst a standout afternoon.
The 19-year-old later claimed a record four stumpings and affected a run out as Diamonds replied with 101 all out.
The Diamonds got off to a bright start in reply with a 43-run opening stand between captain Lauren Winfield and Australian Beth Mooney.
But they were two of four wickets to fall for 16 runs inside four-and-a-half overs as the score slipped to 59 for four.
Both sides, who lost their opening fixtures on Sunday, had success with pace off the ball.
In the end, England left-arm spinners Sophie Ecclestone and Alex Hartley were the pick with three for eleven off 3.2 overs and three for 19 from four as the Thunder won for only the second time across the two and a bit seasons of the KSL.
It also broke a run of two successive Roses defeats.
After eight overs, this looked set to be a procession for the Diamonds as spin duo Chamari Atapattu and Katie Levick struck, while Alice Davidson-Richards’ medium pacers claimed two wickets in three balls in the seventh.
Lancashire reached halfway at 33 for four, with left-handed Satterthwaite and Threlkeld, who has replaced Sarah Taylor behind the stumps this year, in the early stages of a 12.2-over alliance.
And they batted confidently without taking too many risks before expanding.
In the 16th over, Threlkeld slog swept leg-spinner Levick for six before Satterthwaite lofted her straight for a second maximum.
The pair reached their fifties in the penultimate over – Threlkeld off 40 balls and Satterthwaite off 30.
They were only Lancashire’s second and third fifties in KSL history, while their stand has only been bettered by the unbroken 161 opening stand between Rachel Priest and Heather Knight for Western Storm against the Diamonds at York last August.
Winfield then helped the Diamonds get off to a bright start in reply, twice handsomely driving Kate Cross for four, although she was dropped at point on 19 by Emma Lamb off the same bowler.
The England World Cup winner hit a brisk 28 before miscuing her international team-mate Ecclestone to mid-on as the score fell to 43 for one in the sixth over.
That became 56 for two in the ninth when Mooney hold out to deep mid-wicket off Hartley in her first over.
Ecclestone then had Davidson-Richards stumped by Threlkeld at the end of the 10th before Hartley bowled Sri Lanka’s Atapattu at the start of the eleventh as the score fell to 59 for four.
The run out of talismanic England all-rounder Katherine Brunt in the 14th over following a mix-up with Delissa Kimmince left the score at 71 for five and was a key blow.
Kimmince later fell the same way before Threlkeld’s second stumping helped Hartley remove Thea Brookes. She then ran out Alice Monaghan and had Levick stumped off Danielle Hazell and Helen Fenby stumped off Ecclestone to wrap things up.
Yorkshire’s next outing is against Surrey Stars at Guildford on Sunday, while Lancashire host Southern Vipers at Liverpool – both 2.30pm starts.