"It was the hardest day I've ever had in my life on a bike. It was a brutal, brutal, strange old race."

Ireland's Dan Martin

after finishing 13th in a crash-filled men's cycling road race

"People thought I would break under the pressure ... but it was definitely just fun."

Hungary's Katinka Hosszu

after winning gold in the 400 metres individual medley and breaking a world record as well.

"Definitely my favorite race ever, in an Olympic final with my sister and two girls I have known since I was 12, 13 years old and a gold and a world record."

Australia's Cate Campbell

after securing gold from the 4x100m freestyle gold in 3min 30.65sec, the fastest time in history.