The win in Christchurch rained on the parade of semi-retired multiple World, Golden Shears and New Zealand champion Joel Henare who was runner-up. He had won two of the three titles in each of the last four seasons.
Karauria has now won 24 open finals dating back to her first, also in the Corriedale Championship, in 2016, and was made a Master Woolhandler in 2018.
But despite the successes and representing New Zealand at a World Championships, Karauria will compete in a transtasman test for the first time in Dubbo, NSW, on November 29, teaming-up again with world title partner Sheree Alabaster, of Taihape.
Third place went to 2009 Golden Shears senior champion Ratapu Moore.
Moore was originally from the North Island but is now based in Marlborough with husband Angus running a shearing contracting business out of Seddon.
Result:
Open final: Pagan Karauria (Alexandra) 123.632pts, 1; Joel Henare (Motueka) 159.59pts, 2; Ratapu Moore (Sefton) 220.85pts, 3.