The much anticipated race between Rachel Alexandra and Zenyatta? Well, it's on, but only on paper. Horse racing's top two ladies will duke it out among voters for Horse of the Year honors after never meeting on the track.

Each of them have stellar credentials in trying to become the first female to win the year-end honor since Azeri in 2002.

Rachel Alexandra went 8 for 8 this year, including three wins over males, and became the first filly in 85 years to beat the boys in the Preakness Stakes.