The following Mackerras pendulum shows the notional margins for seats following boundary redistributions in Victoria, Queensland, South Australia, Tasmania, the Northern Territory and the ACT.
Based on ABC analyst Antony Green's calculations of the effect of boundary redistributions for the next election,[1] and the outcome of the 2018 Wentworth by-election, the pendulum has the Coalition government on 73 of 151 seats with the Labor opposition on 72 seats and a crossbench of six seats.
[1] Assuming a theoretical nationwide uniform swing, the Labor opposition would need at least 50.7% of the two-party vote (at least a 1.1-point two-party swing) to win 76 seats and majority government.
The following Mackerras pendulum lists seats in the House of Representatives according to the percentage-point margin they held on a two candidate preferred basis based on the 2016 election results.
"[2] a Although the seats of Corangamite and Dunkley were Liberal wins at the previous election, the redistribution in Victoria changed them to notionally marginal Labor seats.