With at least two, and perhaps three, horses from Japan set to compete in this year's GI Kentucky Derby, everyone wants to know more about these horses and why the Japanese runners have had so much success internationally over the last few years. To answer those questions and more, the TDN Writers' Room presented by Keeneland called upon Toshi Onikubo whose website, netkeiba.com, is among the best sources of information on Japanese racing anywhere. Onikubo was this week's Green Group Guest of the Week. He is a graduate of the...