Racing editor Michael Guerin analyses the opening heats of the Inter Dominion pacing and trotting championships ahead of tonight's action at Alexandra Park.

R5, 8.04pm: First Trotting Heat, 2200m mobile

Tactics will be crucial here

R6, 8.33pm: First Pacing Heat, 2200m mobile

R7, 9.03pm: Second trotting heat, 2200m mobile

R8, 9.40: Second pacing heat, 2200m mobile