Time On Distance 
Corrected time is calculated as follows: Corrected time = Elapsed time – (ToD_{delta} * Distance) Where ToD_{delta} = ToD_{the boat}  ToD_{the lowest (fastest boat) in the fleet} With TimeonDistance (ToD) scoring, the
coefficient of time allowance of one boat will not change with wind
velocity, but will change with the length of the course. One boat
will always give to another the same handicap in s/NM, and it is
easy to calculate the difference in elapsed time between two boats
needed to determine a winner in corrected time. 

Where is it shown on the certificate? 



ToD coefficients are calculated for the respective course model (Windward/Leeward or Allpurpose) with the following wind strength distribution:  


A custommade ToD coefficient may be calculated using a different wind distribution matrix based on wind historical data or weather forecast for a particular race. Course model to be used shall be specified in the Notice of Race and Sailing Instructions. 
