Magnussen finds form - London 2012 - Swimming
James Magnussen went some way to exorcising the failure of Australia's Freestyle Relay team to get an Olympic medal as he produced a solid 100m heat performance.
He qualified fourth overall in 48.38, with USA swimmer Nathan Adrian fastest in 48.19.
Magnussen said: 'I think it was a step in the right direction, it was a good swim.
'It's an improvement from the other night, I am keeping positive with a smile on my face.
'I took a fair hit in the relay, I am still trying to bounce back from it.'It was one my first failures since breaking into the international scene.
'It is quite an open field in the 100m, if I can get myself back to the sort of form I had at the trials, I have a good chance of winning it.'
There was a shock in the women's 200m Butterfly, where Great Britain's world silver medallist Ellen Gandy finished 17th, with USA swimmer Kathleen Hersey leading the way in 2:06.41.