dont know if, in the majority of cases, it is the horses preference for a certain type of track, rather the ability of the pygmy to ride well at tricky (usually tight) tracks.

most 1/2 decent nags have the ability to produce a good finish if fit & in the right grade, so if the pygmy does his job, rides to suit the track & has the nag positioned ready to win only bad luck &/or better opposition should be a problem.