Legana belted 160 off their 20 overs as they marked their first win of the season by 88 runs against newcomers Beaconsfield.
Elyse Page's 26 off 14 balls as well as Nicola Dusautoy's 26 and Isabel Partridge's 24 led the way but 60 Beaconsfield extras boosted the total.
Beaconsfield batters Sallee Van Den Berg (15), Tessa Bishop (7) and Grace Jones (3) all reached the 25-ball mark as Camille Demeyer took 2-10.
Bracknell stayed undefeated with a four-wicket win over Hadspen.
Batting first, the Chieftains made 5-72 with Dilani Nimmi the sole batter to make double figures while Debbie Furlonge (7) retired.
Summer Cherdron (2-14) was the pick of the bowlers as skipper Amy Buettel (20) shone with the bat to get the win.
Mary Broadhurst and Kristy Clayton's tight bowling steered Longford to an eight-wicket win over ACL.
Broadhurst took 3-9 and Clayton 2-6 as the Tigers dismissed their opponents for 74, with Narine Maurangi's 23 propping up the total.
In reply, Dimity Whatley (26 off 19) and Caitlin Finch (21) made the most of their opportunity at the top before their teammates finished it.
George Town picked up their first win in the competition, defeating fellow newcomers Beauty Point by five wickets.
Last week's hat-trick hero Chantelle Clarke continued her strong form with 3-17 and Katie Broad took 2-2 as the Saints dismissed their opponents for 70.
Caroline Courtney's run-a-ball 13 was the side's highest score in the innings that featured five ducks, before Clarke went out and put on a show with the bat.
She scored 23 off 25 balls and Sophie Cooke (16 off 12) added some late runs to seal the deal.
Other results saw both Trevallyn sides emerge victorious, Blue by 10 wickets over Evandale Panthers, with individual scores unavailable, and Gold by forfeit over Exeter.
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