C-72.1, r. 5 - Rules respecting Standardbred horse races held at an amateur race track

Full text
246. The official time of a race for each horse must be measured to the nearest fifth of a second and recorded in the log book referred to in these Rules.
The official time of a race must be measured with an electronic timer or, failing that, with a stopwatch.
Decision 96-07-24, s. 246.