Barbadian Sada Williams set a new national record in the 400 metres at Tokyo 2020.

Running in semifinal 3, Williams stopped the clock at 50.11 seconds to place third. She smashed the 43-year-old Barbadian record of 51.04 seconds. It is also, of course, her new personal best.

Stephenie Ann McPherson from Jamaica won the race with a personal best of 49.34 while veteran Allison Felix was second with a season's best of 49.89.

Despite Williams' valiant run, she did not advance to the final. Her time is now the fastest run by an athlete to not make it to the final.

The finals of the women's 400 metres will take place on Friday.