Day 2 in Rio saw the first gold medal -- and vintage form -- for Michael Phelps in the men's swimming 4x100m freestyle relay. It saw Katie Ledecky smash the world record in the women's 400m freestyle while capturing her first gold medal of Rio. It saw Simone Biles, Aly Raisman and Gabby Douglas put on a display of dominance in the gym. It saw history by Diana Taurasi from downtown. It saw a pair of stunning upsets on the tennis courts. And it saw a must-see-to-believe finish in the women's cycling road race.
Sound fun? It certainly was! Relive the day by watching all the top highlights below.