But you have to consider that AERC rules
state an endurance ride must be 50 miles or greater, or perhaps it says not less
than 50 miles. Either way, it means that the rounding off to the nearest 5
miles begins only above 50 miles.
That is an interesting point. The quantization for distance for
an endurance rides is defined in the rules to be 5 miles. Therefore one could
eaisly argue and technically be correct that anything from 47.50000000000001
to 52.499999999999999999 is in fact a 50 mile ride.
I expect that is
not what the people that wrote the rule meant but that is what it
means.