Race condition
A race condition or race hazard is the behavior of an electronics, software, or other system where the system's substantive behavior is dependent on the sequence or timing of other uncontrollable events. It becomes a bug when one or more of the possible behaviors is undesirable.
Race (human categorization)
A race is a grouping of humans based on shared physical or social qualities into categories generally viewed as distinct by society. First used to refer to speakers of a common language and then to denote national affiliations, by the 17th century the term "race" began to refer to physical (phenotypical) traits. Modern scholarship regards race as a social construct, that is, a symbolic identity created to establish some cultural meaning. While partially based on physical similarities within groups, race is not an inherent physical or biological quality.