Fremantle is the only side left unbeaten in the NAB AFL Women's Competition after knocking off Brisbane by 18 points.

Dockers duo Sabreena Duffy and Ashley Sharp started out on fire with four first-quarter goals between them, as Fremantle scored 7.8 (50) to Brisbane's 4.8 (32) for its fifth-straight win.

Duffy's first six disposals were all scoring shots, with three of her four goals coming in a first-half blitz.

If she ever gets sick of dominating on the field, Fremantle midfielder Ebony Antonio could take up a career in confectionery sales after sending Lions defender Kate Lutkins flying with a brilliant feint before drilling a goal.

Fremantle midfielder Kiara Bowers continues to push for a second Virgin Australia AFL Women's All-Australian honour with 21 disposals and 15 tackles.

The win was particularly crucial for the Dockers with Melbourne and Carlton sitting just behind them with four wins each in a tough Conference B battle.

Brisbane sharpshooter Jess Wuetschner was a shining light for the Lions with two goals, while tall forwards Jesse Wardlaw and Dakota Davidson crashed packs all day long.

Emily Bates was at her typical ball-magnet best, racking up 27 disposals in a valiant effort for the Lions.  

FREMANTLE    5.2     6.3     6.4     7.8   (50)
BRISBANE        2.2     3.3     4.6     4.8   (32)

GOALS
Fremantle: Duffy 4, Sharp 2, E. Antonio
Brisbane: Wuetschner 2, Wardlaw, Lugg

BEST 
Fremantle: Duffy, Bowers, E. Antonio, Miller, Sharp, Houghton
Brisbane: Bates, Anderson, Lugg, Svarc, Wuetschner, Davidson

INJURIES 
Fremantle: Roux (eye)
Brisbane: Nil

LATE CHANGES
Fremantle: Nil
Brisbane: Nil

Reports: Nil

Crowd: 4446 at Fremantle Oval