Elaine Thompson-Herah believes the world record is within her grasp after she defended her Olympic 100 metres title in dazzling style in Tokyo.
The 29-year-old scorched to an Olympic record of 10.61 seconds to beat Shelly-Ann Fraser-Pryce and Shericka Jackson as Jamaica claimed a clean sweep in Tokyo.
It was the second fastest time in history, beaten only by Florence Griffith Joyner's world record of 10.49sec set back in 1988 - but Thompson-Herah reckons she might even have annexed the late Flo Jo's mark on Saturday if she hadn't started celebrating so early in the race.
"It's a work in progress. Anything is possible," said Thompson-Herah, when asked if she could set a new mark.
""I think I could have gone faster if I wasn't pointing and celebrating, really.
"But to show you that there's more in store. Hopefully, one day I can unleash that time.
"I knew I was clear, that I won, so I started to celebrate too early. There's most definitely (a world record ) if I didn't celebrate.
"Two months ago, maybe a month and a half ago, I didn't think I would be here (because of an Achilles injury). I held my composure.
"I believed in myself, I believed in God. The team around me is very strong, I get the support and I believe in myself.
"I have more years. I'm just 29. I'm not 30. I'm not 40. I'm still working."
Flo Jo's old Olympic mark of 10.62 came at the 1988 Seoul Games, not long after she ran the 10.49 on a breezy day in Indianapolis.
For decades, debate has raged about whether the marks are legitimate, and the longer they've held up, the more amazing the records seem.
No Olympic champion had even broken 10.7 since Flo Jo. Thompson-Herah insisted she wasn't sure she would either as she approached the finish, but she was sure of one thing. "I knew that I won."
Jamaica had claimed two medals in each of the last two Olympic women's 100m finals but this was a repeat of their podium lockout in Beijing, when Fraser-Pryce won the first of her titles ahead of compatriots Sherone Simpson and Kerron Stewart.
Fraser-Pryce was narrow favourite as she looked to regain the title she won in 2008 and 2012 but ran 10.74secs with Jackson crossing the line in 10.76s.
Fraser-Pryce said: "It definitely wasn't the race I wanted in terms of the technical part of it. I don't find excuses. As an athlete you have to show up and perform regardless of what happens.
"I had a stumble with I think my third step and I don't think I ever recovered but I'm happy to be able to come here and represent and compete for the championship.
"The legacy we have in Jamaica is an incredible one and I'm hoping that no matter what happens, our athletes can draw inspiration from it, be it Elaine running an Olympic record or myself coming to a fourth Olympic Games."
Jackson, who won 400m bronze in Rio, completed the Jamaican dominance and believes they have proved they are the best.
She said: "We will continue to get more medals and more medals. We are the greatest."
Australian Associated Press