The unbeaten Wellington Blaze have won domestic cricket's Twenty20 Super Smash, thrashing Otago by 75 runs in the final in Hamilton

Batting first, the Blaze made 175 for four, with Sophie Devine smashing 92 runs off 62 balls, and skipper Maddy Green making a quick fire 55 off 35.

Otago failed to fire with the bat - skipper and playmaker Suzie Bates was dismissed for just three.

Leigh Kasperek was the best of the Blaze bowlers, taking three for 23.

Devine says on Spark Sport she's pleased she could contribute with the bat.