Sunday, 16 September 2012:

Kotuku Ngawati has upstaged a strong field in the final of the women's 200m individual medley to win her maiden Australian short course title on the fourth night of the short course championships in Perth.

Ngawati led from the beginning to touch the wall in 2 minutes 10.17 seconds, holding off fast-finishing Olympian Blair Evans (2:10.46) and Ellen Fullerton.

In the Multi Class finals, Paralympian Grant Patterson broke two short course world records - the first in the final of men's 50m freestyle multi-class and the second in the 100m breaststroke multi-class.

Patterson, the defending champion in the 50m freestyle, set a new world mark for the event in the heats on Saturday morning, before knocking more than a second off in the final to finish in 53.51.

Patrick Donachie collected his third silver of the meet (26.65) while Sydney Paralympian Jeremy Tidy finished third (24.84).

In the 100m breaststroke Patterson (2:18.61) claimed the event ahead of defending champion Ahmed Kelly who claimed the silver (1:53.27). Jesse Aungles (1:30.56) finished third.

Nothing could separate the leading contenders in the final of the women's 100m breaststroke with gold awarded to both Sarah Katsoulis (1:06.42) and Samantha Marshall (1:06.42).

In other events New South Welshman Joseph Carty won gold in the men's 50m butterfly to claim his first Australian short course title ahead of Ben Lindsay (23.56) and Christopher Wright (23.64).

London Paralympian Katherine Downie claimed her first 50m freestyle MC title, winning her final in a time of 29.17 while 14-year-old Amanda Fowler won her maiden title in the women's 100m breaststroke multi-class event.

London Olympian Cameron McEvoy qualified fastest for the men's 100m freestyle powering home in 47.23 to win his semi-final.

World Cup short course gold medallist Kyle Richardson took second rank while McEvoy's Olympic teammate Tomasso D'Orsogna and World Championship gold medallist Matt Abood were third and fourth respectively.

Victorians Rachel Goh and Grace Loh will continue their rivalry after both qualifying for Sunday night's women's 50m backstroke final.

Defending champion Goh booked pole position with a time of 27.32 with Loh clocking 27.48 and West Australian local Holly Barratt posted 27.52 to qualify third fastest.

Brianna Throssell (58.61) will go through to Sunday night's 100m butterfly final as favourite ahead of Olympic gold medallist Brittany Elmslie (58.87).

Short course specialist Kenneth To's qualified fastest for men's 100m individual medley final while Commonwealth and Australian record holder Christian Sprenger is on track to defend his men's 50m breaststroke title winning his semi in a time of 27.27.

Olivia Halicek will take the fastest time into the women's 50m freestyle final after recording 24.61.

AAP