SIERA stands for the Skill Interactive Earned Run Average. It is used to caculate the statistics of Baseball pitchers. It gives an estimate of the ERA bby calculating the walk, strike out, and ground ball rate.
Siera Casey was born on September 21, 1987.
sprite or siera mist
No, it is not.
sean, zach, siera
Ronoldhino plays in the Italian league Siera A.
Cierra = シエラ (Spelled Siera in Romaji)
2,700 lbs. +/-