A historic night of success inside the Rio Velodrome helped Team GB to secure their best-ever medal haul at an overseas Olympic Games and surpass a UK Sport target of 48 with five days to spare. Jason Kenny was unquestionably the headline success, equalling Sir Chris Hoy's British record of six gold medals with victory in an eventful men's keirin final that came after it initially seemed as if he might be disqualified for accidentally overtaking the motorised derny.
Fiancee Laura Trott broke new ground, becoming the first female athlete from these shores to win four Olympic titles by successfully defending her omnium crown. Leading after the opening three events on day one, she produced the second-fastest time in the 500m time trial and clocked the quickest flying lap before adding to her final tally of 230 in the points race.
There was a second silver for Becky James in the women's sprint, while Katy Marchant claimed bronze. GB's hugely impressive track cycling team won 11 medals in total, simply obliterating the rest of the field in that regard.
The latest rush was kicked off by Giles Scott, who followed in the giant footsteps of domestic rival and Land Rover BAR teammate Sir Ben Ainslie by continuing Britain's total domination of the men's finn sailing event. Hannah Mills and Saskia Clark have also sealed gold in the 470 with only the medal race left to come tomorrow.
16-year-old Amy Tinkler, the youngest member of the British team who had to combine Olympic training with sitting her GCSE exams, secured a surprise bronze in the women's floor final behind dominant quadruple-gold winner Simone Biles and Aly Raisman. The compelling gymnastics competition concluded with Nile Wilson sealing third place and GB's maiden medal in the horizontal bar.
Jack Laugher enjoyed more success in the diving despite an underwhelming semi-final performance, adding a silver in the men's 3m springboard event to complement the historic gold he won alongside synchro partner Chris Mears last week. Chris Langridge and Marcus Ellis will face Chai Biao and Hong Wei in the bronze medal match of the badminton men's doubles after losing to another Chinese pair in Fu Haifeng and Zhang Nan.
In another controversial day at the boxing, Joshua Buatsi had to settle for bronze after being outfought by experienced Kazakh southpaw Adilbek Niyazymbetov in the semi-finals of the light-heavyweight division. Both defending women's flyweight champion Nicola Adams and men's super-heavy prospect Joe Joyce are guaranteed a medal after contrasting victories over Tetyana Kob and Bakhodir Jalolov, but Michael Conlan is out after a massively controversial loss to Russian Vladimir Nikitin.
The Irish bantamweight was furious at the judges' decision and used his post-fight interview to launch an expletive-laden tirade against the authorities. Robson Conceicao won Brazil's first boxing gold by beating Frenchman Sofiane Oumiha in the final of the 60kg men's lightweight category, although there was penalty shootout heartbreak for the female Selecao in their football semi-final clash with Sweden at the Maracana Stadium.
Robbie Grabarz had to settle for a share of fourth place in the men's high jump despite winning an appeal against a late failure at 2.33m, while Andy Pozzi and Lawrence Clarke each missed out on a place in the men's 110m hurdles final that was won by Jamaican favourite Omar McLeod. Lorraine Ugen and Jazmin Sawyer reached the last stage of the women's long jump event, but Shara Proctor was eliminated.
A despondent Dina Asher-Smith squeezed through to the women's 200m final, where she will compete against a strong field featuring reigning world champion Dafne Schippers, 100m gold medallist Elaine Thompson and Tori Bowie. Jodie Williams did not make it.
Eilidh Doyle did eventually reach the women's 400m hurdles final, although there was disappointment for Jack Green. Laura Muir went all out for gold in the 1500m showpiece but came a distant seventh after being left behind on a quick final lap by Faith Kipyegon and Genzebe Dibaba.
The morning athletics session saw Usain Bolt ease through to the men's 200m semi-finals, along with compatriot Yohan Blake, rival Justin Gaitlin and British trio Adam Gemili, Danny Talbot and Nethaneel Mitchell-Blake. Christian Taylor retained his triple jump title and Sandra Perkovic did likewise in the women's discus throw.