An Australian international and Queensland State of Origin representative winger, his club career included stints with both the Canterbury-Bankstown Bulldogs and the North Sydney Bears in Australia's domestic competition, and the Wigan Warriors in the Super League.
Dallas was in the Canterbury squad which won the 1995 premiership but missed the grand final due to a knee injury suffered a week earlier.
He left North Sydney to join Wigan when the Bears merged with local rivals Manly-Warringah to form the short-lived Northern Eagles.
Over 75 metres, Dallas defeated South Sydney winger John Minto and the man at the time considered the fastest player in the game, Parramatta flyer Lee Oudenryn.
Humble in victory, Dallas confessed that the shorter distance helped him and he felt either Minto and Oudenryn would have won had the race been held over 100 metres.
He made a try-scoring return to first team action in the last match of the regular season at St. Helens, in a 42–4 victory that secured Wigan the 2000 Minor Premiership.
His decision was fully justified, as he returned to form in the latter half of the season and played for the Wigan Warriors on the wing in the 2003 Super League Grand Final which was lost to the Bradford Bulls.
There were rumours that Dallas would return to Australia to play in the NRL but, in a speech to the Wigan fans after his final game, he said that he has no plans for the near future apart from enjoying his retirement.