And another thing, do you think that it would be taking the Lord name in vain if it turns out to be a horse that never wins??
I think it's a nice name, nice for the horse, either male or female, and whether the horse ever gets to the racetrack doesn't matter at all for the name. Just because the horse might not have the talent needed to get to the racetrack and win a race certainly doesn't mean it has disgraced the name. I'm sure you have a plan for your horse should it not be successful as a racehorse, and you would still love the horse, so give it the best name you can, and enjoy it.