Western Storm 161 for 0 (Priest 106*) beat Yorkshire Diamonds 160 for 7 (Winfield 58) by 10 wickets
Centurion Rachel Priest and captain Heather Knight led Western Storm to a record-breaking Kia Super League win over Yorkshire Diamonds at York as they chased down 161 to win by 10 wickets with three overs to spare.
New Zealander Priest led the way with some fearsome hitting, albeit taking advantage of a bit of luck along the way as the Diamonds spilt a couple of boundary chances.
She finished with 106 not out off 65 balls and Knight unbeaten on 48 off 38. The pair shared the highest stand in two seasons of the KSL.
A second win from three matches puts Storm level on eight points with the Diamonds in third place with a game in hand in the race to reach Finals Day.
Home captain Lauren Winfield, batting in her home city, had earlier posted 58 off 44 balls as England's World Cup winning hero Anya Shrubsole returned to action following a side injury with 1 for 30 from four overs.
Despite the early loss of Sri Lankan Chamari Atapattu, run out by a direct hit at the non-striker's end from Stefanie Taylor from mid-on, the Diamonds got off to a healthy as another Kiwi Sophie Devine cut loose with 41.
Devine hit offspinner Claire Nicholas for two big sixes over long-on and midwicket as the score reached 55 for 1 after five.
Devine played on trying to hoist Shrubsole to leg with 75 on the board in the eighth over before Winfield, happy to take few risks, reached 50 off 38 balls in the 16th over as the score reached 132 for 3.
The Diamonds then lost four wickets for 19 in the last three overs, the first of which was Winfield bowled by a Davies slower ball, to slip from 141 for 3.
Hollie Armitage then dropped a couple of catches at long-on, with Priest on 25 being the most costly.
Her 39-ball fifty included two sixes over long-on, the second off compatriot Devine's first ball in the tenth over as Storm reached halfway at 81 without loss. Fours and sixes continued to come at ease as Yorkshire's heads dropped.
Priest reached her century off 64 balls, the second in KSL history, with 13 fours and three sixes with the penultimate ball of the match.
Storm's next fixture is against Surrey at the Oval on Wednesday, while Yorkshire's final game comes against Southern Vipers at Arundel on Saturday.