GLASGOW must overturn a 30-point deficit if they are to make the final of the SGB Championship play-offs.
The Tigers were heavily beaten in the first leg of the semi-final at Poole on Wednesday night.
The away side mustered just two heat wins – and one race advantage – as they struggled to rein in the rampant Pirates, who were quicker out the gates all night.
The tone was set with two opening 5-1s from the home team and, by the time seven races had been completed, the lead had stretched to 16.
It took until heat nine for a Tiger to chalk up a race win as guest Paul Starke headed home Steve Worrall.
But there was to be no revival as the Pirates put three more maximums on the card before a 4-2 in heat 15 gave Glasgow their only advantage of the night, courtesy of Craig Cook and Ben Basso.