On Friday night, South West Rocks plans for limited travel ended as the week's rain saw the major semi-final moved from the turf of SWR Sports Ground to Kemp Street's synthetic pitch.
Nulla won the toss and sent the Rocks in.
As usual, Nick Morrison was at his best with the new ball in hand.
Jye Woodger was gone first for 15, bowled at the hands of Morrison.
Liam Hackenberg followed before Corey Murphy was caught by Bryce Widdison.
Liam Askew was then trapped in front.
The Rocks now 4/32, all from the work of the young fast bowler.
The experienced Matt Ryan brought stability to the crease in a counter-attacking innings.
His 43 off 47 balls featured three 4's and three 6's before he was brought undone by a brotherly duo.
Caught by Flynn O'Loughlin off the bowling of Ronan O'Loughlin.
Hayden Williams (26) was dismissed soon after by the same duo with the score now 6/97.
The Rocks lower order managed to add an extra 30 runs before being bowled out for 127 off 30.4 overs.
Nick Morrison finished with 4/16 off 8 overs while O'Loughlin had 3/19 off 4.4.
At 0/21 off 7 overs, Nulla were off to a slow but steady start.
However, the 8th over saw Giddy make his intentions clear, taking the score to 0/33 as his attacking masterclass began.
Both Giddy and Crotty put up a 55-run opening stand with Giddy contributing the most as Crotty departed for 2 in the 13th over.
The dismissal didn't slow Giddy down as his innings progressed.
He and Corey Crotty put on another 49 runs together before Patrick Cotter bowled Crotty for 13.
Giddy then brought up his hundred in the 25th over, in an innings that saw him bomb ten 6's and five 4's.
Youngster Beau Mainey applied the finishing touches with a 6 to reach the target in 25.5 overs.
The win puts Nulla officially into the grand final of the first grade competition with their opponent to be decided this weekend.
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