The Demons held North Launceston goalless in the last quarter.
The Blues held Glenorchy goalless in the second half.
Lauderdale boss Julie Kay says hosting round one will be challenging but exciting.
Launceston's Bowen Pearce wasn't expecting to make his TSL debut this weekend.
Josh Green will be huge for Clarence, although his return will need to wait.
Gun forward Michael Paul is gone, but the Tigers aren't short of options.