Britain's Kadeena Cox continued her impressive Paralympics showing by breaking the world record en-route to victory in the women's 400 metres T38 at the Olympic Stadium, to add to the title she won inside the velodrome.
Cox, who took the C4-5 time trial crown in the fastest time ever recorded, looked at ease on a different type of track as she powered to gold in a time of 1min 00.71 seconds to ensure she finished in front of eventual silver medallist Chen Junfei of China.
Home favourite Veronica Hipolito delivered bronze for the expectant Brazilian crowd.
"I crossed the line and I was like 'Is this it? Have I really done it?,'" Cox said.
"It doesn't even feel real.
"I'm so happy and so glad that I've done it for everyone, everyone that has struggled with chronic conditions, to let them know that it's not the end and they can achieve things."
Cox's compatriot Hannah Cockroft came into the 400m T34 race having already sealed gold over a quarter of the distance and was in record-breaking form once again, clocking a rapid 58.78sec to bag her second title of the Games.
The Briton eased to her fourth Paralympic crown as Alexa Halko of the United States was some way adrift in second, while bronze went the way of Cockroft's team-mate Kare Adenegan.
World records continued to tumble on day seven, as they have throughout the athletics competitions at the Rio 2016 Paralympics, with Wen Xiaoyan producing the furthest leap in history to win gold in the women's long jump T37.
The 18-year-old ended up breaking the world record with four separate jumps, with her best of 5.14 metres more than enough for the title.
Her effort proved too hot for the rest of the field to handle as Franziska Liebhart of Germany, already a shot put gold medallist at the Games in Rio, clinched silver on 4.42m and Jodi Elkington-Jones of Australia managed bronze with 4.30m.
China have dominated the Rio 2016 medal table and they were further boosted by the performances of their athletes out on the track.
Zhou Xia caused an upset as she beat Australian favourite Isis Holt, the double world champion, in a fiercely-contested women's 100m T35 final, crossing the line in a Paralympic record of 13.66.
Holt could do no better than silver, while Maria Lyle of Britain claimed bronze.
The Asian nation then stunned the home crowd by winning the women's 4x100m T11-13, smashing the world record with a formidable time of 47.18.
Brazil, led by Paralympic icon Terezinha Guilhermina, who has suffered the disappointment of two disqualifications at the Games thus far, also went under the old world record with their combined effort of 47.57.
Colombia, who stuttered with their changeovers early on, recovered to secure bronze.
For a full breakdown of athletics results from day seven, visit our Live Blog here.