Midland-Guildford won the toss and elected to bat first, but it wasn’t long before they ran into trouble.
Fury skipper Chloe Piparo was dismissed by her WA teammate Emma King for just seven as the Midland side fell to 1-9.
They never quite recovered from the early setback, continuing to lose wickets at regular intervals.
Bhavi Devchand was the only standout, scoring 41 runs at the top of the order as Midland-Guildford were restricted to just 9-140 from their 50 overs.
Emma King (2-20) and Heather Graham (3-21) were outstanding with the ball for the Lions.
The pair returned remarkable economy rates, their 20 overs coughing up just 41 runs.
In the second innings, it was all Nicole Bolton for the home side.
The Australian international stamped her class on the game, top-scoring with 84 not out from just 108 deliveries, including seven fours and one six to lead her side to 3-141, and record a famous victory with 69 balls to spare.
Bolton was very well-supported by Heather Graham, who completed a tremendous all round performance, adding 24 runs with the bat to go with her three wickets with the ball.
Graham said it was a very special feeling to play a part in Subiaco-Floreats’ first ever 50 over A Grade premiership.
“It’s something we’ve been working towards for a very long time, we’ve had a lot of young girls come through and develop really well over the last few years,” Graham said.
“It’s always nice to contribute to a win, but I think the inconsistent bounce in the wicket certainly helped my figures.
“Bolts’ innings was incredible, it’s so good to see her scoring runs for Subi, and it was amazing for her to win us the flag given the rich family history she has at the club.
“The young girls are only going to grow in confidence after the success this year, so there’s no reason we shouldn’t go close again next year.”