Four wickets for the England left-arm spinner was followed by a punchy, flawless chase led by Healy's unbeaten 96 off 47 balls
Mumbai: Royal Challengers Bangalore 138, UP Warriorz 139-0 - UP Warriorz won by 10 wickets
Royal Challengers Bangalore suffered a fourth successive defeat in the Women's Premier League after UP Warriorz produced a masterclass display to win in Mumbai.
Sophie Ecclestone claimed 4 for 13 as RCB collapsed from 73 for 1 to 138 all out in the 20th over.
Ellyse Perry (52) and Sophie Devine (36) led the way but contributions from elsewhere were lacking.
Deepti Sharma also found form with 3 for 26.
Warriorz were favourites at the halfway stage and they converted that position with a punishing chase, completed with seven overs still to be bowled.
Perry's half-century was in vain (Pankaj Nangia/Getty Images)
Healy delivered an outrageous innings, hitting an unbeaten 96 of 47 deliveries, though she missed out on adding to her single Australia century and five in the Women's Big Bash League.
Her innings included a mammoth 18 fours - including four in a row off Renuka Singh in a brutal ninth over - and a six off countrywomen Erin Burns.
She was ably assisted by Devika Vaidya (39 not out) as the pair put on the second-highest partnership of the competition so far.
The result leaves RCB rooted to the foot of the WPL table having been turned over in all four of their group matches. Warriors remain in third, level on points with second-place Delhi Capitals.