Wind Dancer

Finally, Hallie Grant was getting a horse of her own.
With money her uncle gave her as a fifteenth birthday gift, Hallie Grant was finally able to get a horse of her very own. Dancer was a scruffy white mare with a bad attitude, but she was fast, really fast.
Unable to control the half Arabian mare on the trail, Hallie takes her to her uncle’s horse racing farm, where she can ride her on his track.
But Dancer outruns all of Uncle Mike’s racehorses, and is soon challenged to match races against other racehorses. Professional racehorses.
As Hallie and her snow-white wonder horse are becoming more and more famous across the country, she finds herself caught up in an unexpected romance with Miguel, who works for her uncle.