Sun Yang
Cochrane next competed at the 2011 World Aquatics Championships where he opened up with a fifth-place finish in the 400-metre freestyle. Next up was one of his medal hopeful events in the 800-metre freestyle where he lowered his Canadian record to 7:41.86. However this was only good enough for second, as despite staying close to the hometown favourite of Shanghai Sun Yang ultimately took the gold for China. Of the silver medal Cochrane said that "The goal was to win but I'm happy to progress from the last two years. It shows that I'm in it. I have a little more work to do to catch Sun Yang but I'm not out of it by any means."