After Britain's team pursuit girls romped to the Olympic title by smashing the world record for the SIXTH consecutive race, Rowsell is now a golden girl.
She's got no hair, but we don't care - even if it was International Alopecia Day, of all things, when she joined forces with Laura Trott and Dani King to beat the Americans by five seconds, a country mile in cycling pursuit terms.
Rowsell, from Cheam, Surrey, contracted alopecia when she was only 10 years old.
At first, she lost an eyebrow, followed by handfuls of hair and even eyelashes, but in an outstanding display of synchronicity, Team GB's blazing saddles turned her into a poster girl for the sport.
Rowsell said: "A fan contacted me on Twitter to say it was International Alopecia Day and I thought, 'Wow, that's a bit spooky when our Olympic final is the same day.'
"I hope I can be an inspiration to other girls with the condition and help to raise awareness of it.
"When I was younger, I used to concentrate on schoolwork because I wasn't really confident about going out and doing the usual teenage things. "I didn't have much confidence in my appearance, but when cycling came along that was something else I could focus on - and suddenly it didn't matter what I looked like.
"It was about how I performed on a bike, and when I started winning it was the bet feeling ever. I wasn't going to let anything hold me back." World champion Trott begins her bid for gold in the women's omnium on Monday.