Was Flightline's Pacific Classic the best performance since Secretariat's Belmont (as Bill Finley asked in The Week in Review in Monday's TDN)? Although it was great, the obvious answer is no, because we have witnessed many incredible races over the last nearly 50 years. But comparing and contrasting racehorses (and their best performances), and wondering how they stack up against each other, is part of what makes horse racing exciting and interesting. Secretariat's stupendous effort in the last leg of the Triple Crown was very likely the best performance by...