Batting first, Echuca encountered a little early resistance from Ky when Chloe Moyle fell in the innings’ seventh ball.
Cox came to the crease and went immediately on the attack, belting boundaries off her first two deliveries, and the Echuca run-scoring mission was on.
Maisy Byrne went with her captain as the pair went to work over the next 10 overs, both retiring unbeaten after 30 balls.
The strength of Byrne’s 35 was eclipsed only by Cox’s 51, giving the Echuca captain a rare half-century to celebrate in a competition with a 30-ball innings limit.
With the score nearing 100, the remaining batters did what was required to progress the champions to the dominant position of 2-125 at their innings conclusion.
With a big task ahead of them, Kyabram was always going to be hard pressed to match Echuca’s scoring rate, and the loss of early wickets compounded their woes.
Rebecca Bowles stood out among her teammates, retiring unbeaten before returning to be the last woman out on 26 from 35 deliveries.
In a statistical quirk, seven Redbacks batters were dismissed for exactly one run, with another two failing to score, as Ky crumbled to an all-out 59.
Six Echuca bowlers snagged wickets, Marlie Hollamby (3-7) and Holly Smith (2-4) taking multiple.
Ky’s next assignment is a home match up with Shepparton Youth Club United, who are coming off a six run win against Moama.