Swimmer Erika Fairweather has qualified for the 800 metres freestyle final at the World Championships in Singapore

She's finished fourth in heat three - clocking the sixth-fastest time for the final overnight tomorrow New Zealand time.

Fellow Kiwi Caitlin Deans was tenth-fastest, to narrowly miss out on advancing.

Zoe Pedersen and Laura Quilter have finished 7th and 10th, respectively, in their heats of the women's 50 metres butterfly.