For a knowledgable review, read IG's review below. For a sentimental review, read on.
This probably makes me a bit of a chauvinist but I find this story more tragic because Eight Belles was a filly. For a female horse to go out, run for broke, and defeat 18 of the strongest and fastest male horses on the planet, and in the process, run so hard that she goes to her grave... is heartbreaking.