Marching Mac may sit six pounds below the top-rated Canon's House on paper, but a progressive profile suggests there is more improvement to come and that narrow gap on ratings understates the case for him on today's terms over this sharp five furlongs at Catterick on good ground. Canon's House and Fidelius, a pound apart at the head of the ratings, will pose the sternest test, and Novamay, rated level with our selection, cannot be dismissed either. The confidence is measured rather than absolute, yet the upward trajectory makes Marching Mac the most compelling pick in the race.