The England teenager claimed 3 for 26 and hit 34 as DC became the first side to book their place in the Mumbai showcase, leaving UP Warriorz and MI to scrap it out in the Eliminator
Mumbai: UP Warriorz 138-6, Delhi Capitals 142-5 - Delhi Capitals won by five wickets
Delhi Capitals have become the first side to book their place in the Women's Premier League final after securing top spot in the table courtesy of beating UP Warriorz in Mumbai.
Alice Capsey's player of the match display - she took 3 for 26 before hitting 34 in the routine run-chase - means DC will be heading back to Bradbourne Stadium on Sunday (March 26).
Mumbai Indians had gone top after beating Royal Challengers Bangalore but saw Capitals leapfrog them on net run rate following their sixth group victory.
Warriorz knew they were out of contention to reach the final automatically, but could play with the freedom of being assured of a top-three spot.
They made 138 for 6 from their 20 overs, with Australia's Tahlia McGrath top-scoring with a breezy 58 not out off 32 balls.
Alyssa Healy's side were in good shape at 63 for 1 through 9.5 overs but a constant flow of wickets meant they were unable to push on.
McGrath's half-century wasn't enough for the Warriorz (Pankaj Nangia/Getty Images)
It was a stumble that was sparked by Capsey, who dismissed Healy (36) after she missed a wide delivery and was stumped by Taniya Bhatia.
Kiran Navigre (2), Deepti Sharma (3) and Sophie Ecclestone (0) all failed - the latter pair being dismissed by Capsey in the 18th over.
But McGrath showed great counterattacking ability, mashing 28 from her final seven deliveries to give Warriorz hope.
Capitals captain Meg Lanning (39) and Shafali Verma (21) appear to put the lid on any idea of a Warriorz victory with an opening stand of 58 in 29 balls.
Three wickets fell for just 14 runs but it was a brief glimmer of hope for Warriorz, as Capsey and Marizanne Kapp both hit 34 from 31 deliveries.
And it would be the South African who would lead DC into the final with a four, pushed through cover, with 13 balls to spare.