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.
Conditions races
Conditions races are staged at all levels of horse racing. As all of the most important races in Europe are conditions races, the term may also refer to races for the very best horses, known as Group races. That is not the case in North America and Australia, where handicaps are included in the Group race/Graded race system.