The Australia 'A' and Queensland Fire wicket-keeper/batter belted 146 runs off 85 balls as the Dolphins romped to a 125-run win over University of Queensland at WEP Harris Oval in the opening round of the competiion.
Redmayne, who will turn out for the WBBL champion Heat team after signing with them last month, hammered 21 fours and 2 sixes as she and Tara Wheeler (81) piled on an opening partnership of 232 on the way to a total of 8-307.
Former Queensland off-spinner Belinda McDougall was the stand-out with the ball for Gold Coast, claiming 5-28 from 9.3 overs as University of Queensland were dismissed for 182 off 36.3 overs.
Heat and Queensland batter Laura Harris produced a hard-hitting 46 while Jessica Bradley (65) did her best to marshall the run chase for the home side.
The Sunshine Coast Scorchers had their first grade debut doused with no play possible at Kerry Emery Oval against Valley.
Elsewhere, a typically dynamic 76 from 60 balls by Queensland and Heat batting trump Grace Harris helped Wests to a nine-wicket win over defending premiers Sandgate-Redcliffe. Harris and Annie Wikman (69) put on 131 for the opening stand as they finished 1-157 in response to the Gators total of 156. Pace bowler Holly Ferling snared 3-25 and fellow new ball bowler Courtney Sippel picked up 2-23 and seamer Meagan Dixon had 2-24.
A dashing batting effort from Darling Downs cousins Ruth and Ellie Johnston delivered an emphatic win for Ipswich/Logan over Wynnum-Manly/Redlands.
Ellie, in her first season as a Queensland Fire contracted player, scored 108 from 105 balls including 14 fours while Ruth dashed to 128 from 129 balls as the Hornets amassed 310. Wynnum-Manly/Redlands, in their second season in the top competition, finished with 159 with opener Chelsea Gan (79) playing a lone-hand. Ipswich/Logan celebrated the effort of Keely Frieiberg who took 4-14 from five overs.