A-League club Adelaide United have kicked off their pre-season campaign with a comfortable 2-0 victory over SA Super League side Adelaide Galaxy.

Dutch striker Sergio van Dijk and Argentine midfielder Marcos Flores scored the Reds' goals, both in the first half, to set up the win.

Reds assistant Phil Stubbins was pleased with what he saw ahead of a stronger challenge when they meet the Wellington Phoenix at Hindmarsh Stadium on July 16.

"I'm certainly very buoyed by the performance," Stubbins said.

"Obviously in the first half we put out a select first team and it was very encouraging on the eye, and I think the mentality and the objectives that we've been driving over the course of pre season were witnessed in the first half and we really played with some attacking intent.

"I thought most of the boys were fabulous in their efforts and although the score line was only 2-nil, it was a very confident and positive performance, and very encouraging.

"To witness tonight what we've been trying to instil in the course of the pre season in terms of getting the ball down and playing football, I'm hoping that other people will talk about the style of football that was played tonight."