The real issue here is: what is the value of 0/0? Normally, your stage points are computed as ((your_HF)/(HHF))*(available_stage_points). In the normal case when the HHF isn't zero, it all works out. But in the case where it IS, you simply can't do this. But, the competitor with the highest hit factor (0) is to be awarded the maximum points available (60), according to the rule Flex quoted.