I purchase the Cynthia par book every year.
So when a new track opens or a track changes surfaces like Keeneland and Del Mar will, I write down the finish times of all races on the new surface to use to compare with other tracks.
For example, the Los Al meet ran these new distances.
My findings were----
5f 4 races average time 57.1
5.5f 23 races avg time 1:04.0
6f 19 races avg time 1:10.1
6.5f 2 races avg time 1:16.0
7f 2 races avg time 1:23.0
1 mile 13 races avg time 1:36.4
1 1/16 3 races avg time 1:43.2
1 1/8 1 race time 1:47.0 (grade III)
Of course these times are from both genders and all classes and no variant is factored so I use them as advisory if I use a pace line from there. Plus, since the meet was short, the sample size is small.
At track. where more races are run I do not take times from maiden claiming races or 2 year old races.
When Del Mar switched to Poly I wrote down the times of qualified races and my figures were very close to the times in that Cynthia published in their next book.
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