That day was a perfect example of why the idea of using one variant for a whole day is ridiculous. Even when the track is listed as fast for all the dirt races.
First of all, we don\'t use pars, we make figures using the past figure histories of the horses. It doesn\'t matter what type of races they ran in.
On that day, the first 6f race was the second race. Following that race, the track was sealed because there was rain in the area, and there were showers during the third race. Before the next 6f race (5th) the track was broken open again (harrowed), and right after the race re-sealed. It was harrowed again before the final 6f race (9th).
The second of those races was run 1 1/2 hours after the first one, the final one 2 hours later, and a lot of things happened to the track during the intervals. There is no basis for an ASSUMPTION the track stayed the same speed. So I did them as completely separate events, at very different variants. I have the first one listed for review, when the horses have come back and run.
For more on this see \"Changing Track Speeds\" in the Archive section of this site.