Shelly-Ann Fraser-Pryce ran a blazing, world-leading 10.62 seconds in the women's 100-meter final at the Monaco Diamond League on Wednesday.
In 2017, Fraser-Pryce had an emergency C-section when she had her son Zyon, subsequently taking two years away from the track to rehabilitate and focus on motherhood.
In the face of fears she would never reach the summit of the sport again, the new mother only improved year on year, bagging a record fifth 100m title at the World Championships in July.
"I look forward to doing my personal best for the rest of the season," she added.
Florence Griffith-Joyner still holds the women's 100m record of 10.49 seconds from 1988, ahead of Jamaica's Elaine Thompson-Herah and Fraser-Pryce on the all-time list.
Elsewhere, Olympic and world champion Faith Kipyegon broke the Kenyan record, the meet record and her personal best in the 1500m, but narrowly missed out on Ethiopian Genzebe Dibaba's 2015 world record of 3:50.07.
"I have been chasing the time for quite some time but I am happy with the personal best," Kipyegon, who returned to the sport in 2019 after the birth of her first child, said.
"I knew this was the best place to get the world record so I am disappointed I lost it in the last meters."