Looking at the numbers here versus WCG's own site for WCG teams, there seem to be significant differences (besides the factor of 7). Second and third place are almost tied at around 13.5 billion on WCG, whereas those same two teams on Free DC show scores of 1.9 and 1.6 billion. Without bothering to multiply by 7 it's clear that they are not matching.
I must be missing something obvious but I don't know what. Can someone explain the difference?