CD Tacon, taken over by Madrid in a reported €500,000 ($810,000) deal in June, was completely outplayed at the newly opened Estadi Johan Cruyff on Sunday (AEST).

Barca led 4-0 at the break having opened the scoring in the eighth minute through Alexia Putellas.

She turned provider for Aitana Bonmati before a Lucia Suarez own goal made it 3-0, with Mariona also on target from close range before half-time.

Tacon, which trains at Madrid's facilities and wears the club's famous white strip, grabbed a goal back through Jessica Martinez.

But Bonmati's second restored Barcelona's four-goal cushion and Norway star Caroline Graham Hansen, a recent Barca signing, added its sixth.

Hermoso, a second-half substitute, swiftly made it 7-1 to add to the humiliation and the goals kept coming, with Bonmati setting up the Spain attacker again.

In added time, Hermoso claimed the match ball with a curling finish, completing the rout.