Five yearings, all born in the same month, exercising at a slow pace for 20 minutes on a mechanical walker at the farm.

The YELLOW line indicates the inferior athlete of the bunch, doing the same level of work as the others, but at a much higher relative intensity. On the other hand, the RED line shows the leader of this group, his internal systems (heart, lungs, blood, muscles, ligaments, etc.) interrelate during exercise more efficiently than the rest.

I am in the process of collecting this data on 100+ yearlings targeted towards the Saratoga Select Yearling sale this fall. Most work will be done behind the scenes at various Lexington area farms.

I will have them ranked from 1 to 100+ based on actual exercise performance during the pre-sales conditioning process over the next few months. This is very valuable information to contribute to your selection process, only available at ThoroEdge.

V200 is the speed achieved with a heart rate of 200bpm, or roughly 85% intensity. This number can be obtained, as seen by the graph to the left, with submaximal exercise intensities between 50-70% in the yearling.

V200 has shown to be remarkably consistent around the world:

age = V200

6 months = 8.51 to 11.93mph

12 months = 9.94 to 13.24mph

18 months = 11.93 to 14.91mph