Great Britain's women have won 4×400 metres bronze and taken the country's overall medals haul beyond London 2012.
Shortly after Mo Farah retained 5,000m gold, the quartet of Eilidh Doyle, Anyika Onuora, Emily Diamond and Christine Ohuruogu took to the track for the penultimate race at the Olympic Stadium.
The British women impressively secured third in three minutes 25.88 seconds - their first 4x400m relay medal at an Olympics since Barcelona 1992.
Furthermore, bronze took the medals haul to 66, beating the 65 achieved in London four years ago.
A post-Games dip has not come to fruition and Team GB are guaranteed to reach at least 67 medals as boxer Joe Joyce faces France's Tony Yoka in Sunday's super-heavyweight final.
It saw Ohuruogu win a medal at a third successive Olympics and took the athletics team's tally to seven, seeing them meet their UK Sport minimum target for Rio 2016.
Earlier in the evening, Lynsey Sharp produced a lifetime best run of 1min 57.69secs to finish sixth in the women's 800m final, which was won by South Africa's Caster Semenya.
"It was a great race to be part of," the Scot said.
"I knew it was going to be very competitive and to run my fastest ever time in an Olympic final, I have to be happy with but I'm a little bit frustrated because I know that I can go faster than that.
"It wasn't necessarily about times but being competitive and I feel like I did myself justice."
Morgan Lake placed 10th in the women's high jump final after clearing 1.93m at the third attempt, while Charlie Grice finished the 1500m final 12th in 3:51.73.
"Very happy to be here but was hoping to perform a bit better than that," Grice said.
"But, still, I can hold my head high because apart from the Spanish guy (David Bustos) I was the only European in that race."