Ten years ago enthusiastic young swimmer Katie Ledecky, then 9 years old, queued up to get an autograph from pool legend Michael Phelps. Now, in 2016, herself a five-time Olympic medallist (four gold, one silver), Phelps queued up to get a signature from Ledecky.
Phelps is now the most decorated Olympian of all time, taking home five gold medals and one silver from Rio. That seems him with a total of 23 Olympic gold medals in his career, 28 in total (three silver, two bronze).
Ledecky, as well as her haul of medals, leaves the Rio Games with two world records.