Saturday saw the curtain drawn on the amazing record-breaking Olympic swimming career of Michael Phelps, with the 27-year-old bowing out with yet another gold medal.
Phelps' participation in Team USA's win in the 4x100 medley relay took him to a seemingly unmatchable haul of 18 golds and 22 total medals.
USA's ladies were also among the records, with Missy Franklin, Rebecca Soni,Dana Vollmer, and Allison Schmitts etting a new record for the women's 4x100m medley relay, finishing in a time of 3 minutes and 52.05 seconds.
Elsewhere in the pool, Sun Yang (China) wiped more than three seconds off his own world record to win the men's 1,500 freestyle gold in style, clocking a new world's best of 14 minutes and 31.02 seconds.
Canadian equestrian Ian Millar, (pictured above) rode into Olympic history by competing in his 10th Games - the most of any athlete.
The 65-year-old Millar, aboard Star Power, was riding in the show jumping qualifying round for individual medals. He surpassed Austrian sailor Hubert Raudaschi, who retired in 1996 after appearing in nine Games.
Weightlifting saw Kazakhstan's Ilya Ilyin set world records for the 94 kilograms (207-pound) weight class with a benchmark 233kg clean and jerk, plus a world's best total lift of 418 kilograms (921.5 pounds).
Great Britain trio Laura Trott, Joanna Rowsell and Dani King eased past the United States to win the first ever women's team pursuit gold in the velodrome on Saturday, Smashing their own world record for the sixth succesive time, surging home in 3 minutes and 14.051 seconds.
The victory also saw Trott become the youngest ever Olympic gold medalist in women's cycling events.
Jessica Rossi's winning score of 99 in the women's double trap shooting beat the previous world record score of 96. The 20-year-old missed just one of her 100 shots during her gold medal display.