He notably hit 47 off 20 balls in the 20/20 final between Victoria and Western Australia.
Luke Sutton hit 55 off 119 balls, and Derbyshire made their way to 326 in 112.4 overs.
Trent Johnston hit 21 runs off 15 balls but his effort was not enough to secure the win for Ireland as they fell two runs short.
After a nervous start the New Zealander took 20-over batting to new heights by hitting 158 off 73 balls.
Sibanda cracked five sixes in his 60 while Vincent cleared the ropes twice as he hit an unbeaten 75 off 55 balls.
Reifer, as an opener, made 30 and Salmond, moving freely, hit a splendid 56 off 95 balls, including six fours.
Nixon hit 16 off 15 balls and took a catch.
There, he proved his World Cup feat was no one-off, hitting a stunning 119 off 52 balls against Middlesex.
He hit 68 off 98 balls and helped his team to victory over the Netherlands.
He hit a rapid 44 off only 20 balls to be named man of the match as NSW took the match and the tournament.