Rebecca Adlington actually swam the final 50 meters of the 800m freestyle final in 28.91 seconds in last year's world championship, slightly faster than the Chinese girl.

This whole thing about her swimming faster than the men is completely false, as you're comparing her time with a man who was so far ahead in his race, he was easing up. Her overll time for the race was 23 seconds slower than Lochte's.