Anywhere to find these stats?

[jk3521]

Anywhere I can find stats based on the first time jockey riding a horse win percentage or ROI? Of course not counting first time starters.This came to mind because at MTR first time DeShawn Parker seems to be a good bet,of course if you don't mind eating chaulk.

[classhandicapper]

I've never seen that stat, but I do calculate it from time to time manually (very rarely though) when it seems like a specific jockey is moving up a lot of horses. I checked Dominguez in NY in the winter for awhile.

[therussmeister]

I would be more interested in second time.