The only certainty left is Cate in the 100m...
The men's 100 and both the 50m are lotteries but hopefully they can win one of them...
The other 2 hopefully from the following;
Horton in the 1500m ...
Womens Medley relay...
Larkin in the 100 or 200 ( unlikely to win both)
Cate is no certainty in either the 50 or 100 with little sister a good chance. Sarah Sjostrom's world record in the 100 fly could see her be a real chance of winning the both 50 and 100 free too. Watch out for the Dutch girl Ranomi Kromowidjojo in both events as well.
Also Federica Pellegrini - past her peak in the pool but still awfully fine out of it. Although she will probably feature in the medals in 200free.
Florent Manadou a good chance of going back to back for 50 free. Can't see McEvoy winning this. 100 is his best chance.
Women's medley relay is anyone's but expect China and Sweden to be right up there along with US.
Katinka Hosszu could well get swimmer of the meet if she wins the 200im and 200 back which I expect her to. She's also in the 100 back final and a real chance. Simply in career best form. She is also a chance in the 200 fly although Australian Maddie Groves should probably win that.