A speed map is a graph that shows the expected running position of every horse in a race, based on their racing pattern.
While it is always useful to look at the speed map before any race, it is especially the case when there is a track bias that unfairly favours either back markers or leaders.
"Far out, I should've checked out the speed map before backing that Kris Lees mare. She was sitting at the tail end when all the on-speed horses have been bolting in."
