My thoughts are that many of the classiest horses around are able to handle the physical toll of racing against the elite without incurring injury or form loss. They also seem to have an extra capacity to SUSTAIN their performance levels over the greater part of each campaign. That doesn't necessarily mean they are always winning, but they do remain very competitive in most of their races at this higher class.

Naturally there are exceptions but the best of the best can maintain high strike rates even when competing in a number of feature races against well credentialled gallopers.

I usually get wary, though, once the campaign is prolonged over, say, 9 races or more. The probability of "training off" then comes into consideration and I rate it down a little. All generalisations, of course, but it's an interesting topic in form study.

A summary of the way I view this, in general, could be:

More Class = More ability to withstand stress.

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