Kelly Smith and Kim Little scored two goals each as Arsenal reclaimed top spot in the Women's Premier League with a 6-1 win against Watford.
The Gunners are ahead of Chelsea and Everton on goal difference with all three clubs enjoying 100% records.
Everton beat rivals Liverpool 2-1 on Wednesday, while Chelsea won 5-0 at Fulham on Thursday, thanks to a hat-trick from Eni Aluko.
Blackburn drew 2-2 with Leeds Carnegie to earn their first point this season.
Arsenal 6-1 Watford
Scotland midfielder Little's first-half brace sandwiched a Cori Daniels own goal to give the Gunners a 3-0 lead at the break.
Wales captain Jayne Ludlow added the fourth just after the break, before England striker Smith scored twice in two minutes to complete the Arsenal rout.
Striker Helen Lander grabbed a consolation eight minutes from time.
Fulham 0-5 Chelsea
Two first-half goals by Aluko put the Blues in the driving seat, but the game might have turned if Fulham's Bonnie Horwood had not missed a penalty shortly after the break.
The home side were finally sunk when Chelsea substitute Brooke Chaplen, a close-season signing from Portsmouth, struck two goals in quick succession.
And three minutes from time, Aluko completed her hat-trick to take her season's goal tally to six in four games.
Blackburn Rovers 2-2 Leeds Carnegie
A Sophie Walton equaliser six minutes into stoppage time salvaged a point for Leeds.
The visitors had taken the lead through Katie Holtham just before half-time, but two Natalie Preston goals in 10 second-half minutes gave Rovers the edge.
A late Leeds onslaught seemed to be in vain until Walton hit her late, late equaliser.
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