A dead heat is a rare situation in various racing sports in which the performances of competitors are judged to be so close that no difference between them can be resolved. The result is declared a tie and the competitors are awarded a joint ranking. Dead heats can occur in both head-to-head races and competitions where competitors race sequentially and are ranked by finishing time.
Photo finishes have been a long-standing method of resolving outcomes too ambiguous to be distinguished by the naked eye. Improvements in technology, including digital super-slow motion replay and pressure-sensitive digital timers, have increased precision in resolving dead heats. Consequently, dead heats are declared less often than they once were.
- ^ "The Boat Race yearly results - men". The Boat Race Limited. Archived from the original on 24 September 2014. Retrieved 26 March 2018.