Hi lucky,

Yes, times have to always be considered relative to the track in question and this is done through establishing standards, in my case for each track and distance in Australia.

It's not only important to understand the difference in tracks within your standard, but also he difference in the average class of race there. Your standards need to be adjusted to reflect that.

It's only through doing this that you can rightfully and directly compare one time to another at different tracks.

I'm not aware that you can buy data that represents what I have described above. If your friend makes an income from such an approach why don't you just get / buy his standards?