Jason Kenny claimed his fifth Olympic gold medal in track cycling by edging out fellow Briton Callum Skinner in the men's sprint final on Sunday.
Kenny and Skinner teamed up with Philip Hindes to win gold for GB in the men's team sprint on Thursday, before each making the final of the individual event.
Reigning champion Kenny then showed his class to retain the title he won in London four years ago, beating Skinner with relative comfort in the first two races to ensure a third contest was not necessary.
At the age of 28, Kenny now stands alongside fellow cyclist Bradley Wiggins and rowing icon Steve Redgrave on the list of Britain's most prolific gold medallists, with only Chris Hoy - another star of the velodrome - ahead of him with six.
Bronze in the men's sprint went to Denis Dmitriev of Russia, who beat Australia's Matthew Glaetzer.
France's Thomas Boudat leads the men's omnium at the halfway stage, ahead of Ella Viviani (Italy) and Mark Cavendish (Great Britain).
Boudat, the 2014 world champion, took over at the top of the standings when previous leader Lasse Norman Hansen fared poorly in the elimination race, tumbling to sixth as a result.
Meanwhile, the much-decorated Anna Meares had to come through a repechage heat to stay in contention for the women's sprint title.
Sprint races are often decided by the slenderest of margins, but Kenny's success never appeared in doubt as he got the better of his team-mate with relative ease.
Becky James' time in qualifying for the women's sprint, 10.721 seconds, represented an Olympic record.
QUOTES OF THE DAY
"I'm really hit or miss in the keirin. I know I could come out and win it, I could medal, but I could also go and bomb out in the first round. For now, I am focused on recuperating," Kenny is unsure of whether a sixth gold will come his way.
"I got beaten by the world champion and he had the tactics and the legs. The main focus has been the team sprint, so to come away with anything else was a bonus," - Skinner tells the BBC he is delighted with a silver medal.