[quote=GenuineRisk]I don't know if there is, but sometime around Rags' Belmont I read a really interesting article about the physiological advantages of colts vs. fillies. I wish I could remember where I saw it and post the link, but I remember the thrust of the article being that there was no real advantage for colts at short distances (six furlongs and less) and at long ones (past a mile and a quarter) but that the males had an advantage for the middle distances, with the advantage peaking at a mile and a quarter.
I looked for the article, but no luck so far. However, I did find this, ahem, very "interesting" look at Rags' Belmont victory from a Biblical standpoint.
http://www.biblenews1.com/history7/20070609filly.htm
This is better than most explanations that have been trying to explain Mine That Bird's victory.
Is the infamous ROSSTABBERT behind this organization?