As detailed in a video posted online after the March 16 event, UFC executive Michael Mersch informed Diaz and his camp just prior to the weigh-in that the Quebec commission would not take decimal points into account, meaning that as long as both men weighed in under 171 pounds, they would be considered to weigh 170. Mersch also informed Diaz that he and Georges St. Pierre might be given an extra hour to make weight if necessary.
In a recent statement released to MMAFighting.com, commission rep Joyce Tremblay reiterated that decimal points are not considered when weighing fighters in the Canadian province:
“I wish to inform you that, during UFC 158, no contestants exceeded the weight determined in their contracts,” Quebec commission representative Joyce Tremblay said in an email to MMAFighting. “Currently, the Régie does take into consideration the maximum weight determined by contract when it carries out the weight-ins before a bout. However, our regulation on combat sports does not take decimals into account. Their consideration is a question of interpretation likely to be debated between the two parties under contract.”