The 16-year-old has the highest average in the league with 44.75 from six innings and second-most runs with 179, including her maiden half-century at First Grade level in round five.
The Jets passed the required total on the first ball of the 13th over, after Beazleigh and Khiarni Cornish combined for an unbroken 79-run opening stand.
Earlier, West Torrens struggled to set a competitive total, with Kayla McGrath (16) and Laura Niejalke (11) the top-scorers.
Neisha Iles (2/9) was effective in the attack, while Taylah Gregory (2/14) also chipped in with two wickets.
Teenager Ella Wilson continued her strong campaign with the bat for Southern District, posting 27 from 24 balls to elevate her into third place for most runs, with 149.
She led the pack for the Stingrays, with Kylie Rattray (21 from 17 balls) providing some solid support.
The Stingrays reached 9/118 after their 20 overs, with two wickets a-piece from Sturt bowlers Stacey Oates (2/26) and Rhianna Peate (2/28).
Hannah Sampson dismissed both Sturt openers, while birthday girl Kelly Armstrong was efficient, taking 3/10 from four overs.
Oates blasted an impressive 36 from 22 balls in the Blues’ chase, but lacked enough support to get the job done.
Annie O’Neil pitched in with 16 and Eliza Bartlett with 15, but the Blues fell 11 runs short.
With one minor round remaining, Kensington and Southern District have already solidified their place in the top two and will compete for the Statewide Super T20 Cup on 30 November at Karen Rolton Oval.