BY DAY, Rebekah Bailey is an administrative co-ordinator at the University of Ballarat.
By night, she’s a powerhouse roller derby star who flies by the name of Apocalypse Nerd.
Mrs Bailey, 32, is one of the founding members of the Ballarat Roller Derby League.
She’s been competing in the sport since it first came to Ballarat in 2008 and has taken a few knocks - as well as dishing out some of her own.
Now, along with her fellow competitors from the Ballarat league, she’s set to hit the silver screen.
The mother of two will feature in This Is Roller Derby, a documentary following the birth of the Ballarat league.
Filmed in the USA and Australia, the doco is set to premiere in Ballarat in October.
Mrs Bailey said the documentary would be a great way to introduce people to the sport.
“It’s not what you would call a normal sport, I suppose,” she said.
“It can get very full-on at times and quite physical. It attracts really big personalities and inevitably, those big personalities are going to clash.”
Roller derby is a contact sport played by two teams of five members roller-skating in the same direction around a track.
The game consists of a series of short match ups – or jams – in which both teams designate a scoring player who scores points by lapping members of the opposing team.
And, although competitors might be aggressive on the field, often their off-court personas are polar opposites.
Some of Ballarat’s competitors include teachers, counsellors and a university research fellow.
Mrs Bailey, an office worker at the UB school of science, IT and engineering, also fits that mould.
“I’m actually just a big nerd at the end of the day,” she said.
This Is Roller Derby will premiere at the Regent Cinemas on Friday, October 5.