A roll-down is a method of allocating unclaimed qualifying spots based on race ranking.
There are many ways to roll down qualifying spots. In this case, Triathlon Canada has chosen a largely online, expression-of-interest based system.
Qualifying races receive a number of qualifying spots. A spot refers to one spot for each male and each female in each five-year, age-adjusted age group.
This means that at a qualifying race with one spot, the first place male and the first place female in each age group qualify. First place in AG = you qualify.
In races with two or more spots, the first and second, and perhaps the third, fourth, etc. place athlete qualifies.
Roll-down happens when some spots go unclaimed. Perhaps an athlete has already qualified at an earlier race, doesn’t want the spot, or there aren’t enough athletes in the age group.
In a roll down, unclaimed spots are offered to athletes in order of their placing. If the first place athlete doesn’t claim their spot, it will be offered to the second place athlete, then the third, and so on.
Athletes often enter qualifying race hoping to qualify on roll-down.