Michael Phelps's clinching of his 19th Olympic medal was seen by a peak audience of over 10 million (40%) last night (July 31).
The USA swimmer, who now has 15 golds to his name after winning the freestyle, pulled in 9.7m on BBC One and 470k on temporary digital channel BBC Olympics 1.
For the duration of the coverage between 7pm and 10pm, viewing never dipped below 5m, while BBC Three's screening of the Team GB women's football match against Brazil logged 1.45m (6.2%).
The final of the women's gymnastics attracted a hefty 4.79m (35.3%) to BBC One from 4pm, prior to which Zara Phillips's silver in the equestrian event interested 2.34m (24.9%) from 2pm.
Ben Ainslie's sailing blew 1.13m (8.7%) over to BBC Three between 2pm and 8pm, helping the channel to a new record all-day share of 6.6%.
Olympic Breakfast (1.57m/40.7%) and Olympics Tonight (2.19m/18.6%) continued to flourish in the early morning and late-night hours.