English striker Matt Derbyshire has starred with a hat-trick to help deliver Macarthur's debut home win at the end of an enormous week for the A-League's newest club.
The 4-0 victory over Adelaide United at Campbelltown Stadium was the Bulls' first competitive triumph at the ground, and capped off a week where the club picked up seven points across three games in seven days.
The win moved the Bulls into the top two on the A-League ladder.
Displaying high energy despite the torrential rain, the Bulls pulled off a convincing win just three days after beating Brisbane 2-0 at Redcliffe.
Derbyshire had a busy night in front of the net and had missed with at least three attempts before landing two in seven minutes midway through the second half.
His third came from a simple header in the 90th minute to rack up his first hat-trick in Australia.
Seven minutes earlier there was rapturous applause from rain-soaked fans for skipper Mark Milligan when he streaked away to score the third.
Although he finished with three goals to his name, former England under-21 international Derbyshire looked shaky early and could not land a shot from several attempts in the first half as Adelaide scrapped hard in defence.
The Reds have now failed to win in all four of their matches outside of South Australia this season, and have conceded 12 goals in the process, scoring four.