The Breakers couldn't overcome a strong Crocodiles defence in the first of the best-of-three semi-final series and were blown away with hot shooting by the visitors in a 30-18 third quarter.
The Breakers will now have to repeat last year's effort against Perth of scoring an away victory in their second semi-final to have a chance of repeating their 2011 title.
The Crocodiles made a quick start, but the home team held firm and a three-pointer in the last minute by Leon Henry took the Breakers to a 21-19 lead at quarter-time.
Seven straight points after the break took the Crocodiles to a 26-21 lead, though the Breakers quickly replied with a seven-point run of their own.
The Crocodiles stayed in touch for the rest of the quarter, and a three-point play from bench player Elvin Mims helped the Crocodiles take a 44-41 lead into the halftime break.
There was only one team in the third quarter.
Jacob Holmes was strong at both ends of the court, leading the visitors to 30 points, while the Breakers could not get any momentum offensively and were down 74-59 at the end of the quarter.
The locals tried to get going in the final quarter but were always playing catch-up and now face having to win in Townsville if they are going to make the final.
Mims, Holmes, Eddie Gill, Peter Crawford and Luke Schenscher all got into double figures for the Crocodiles, with Holmes and Schenscher also making a big rebounding impact.