"Thursdays are fine. As long as I work the weekend shift, Tracy's not usually particular about what I do during the week." And it would be good preparation for the worst of her work-week; a sort of treat before she had to go in and put on a show.
"This is nosy and possibly foolish, but I don't know much about the business of horses and riding - do you prepare people for competition? I don't want to compete, don't worry, I'm just curious." If Wanda had delusions of grandeur, they certainly weren't in the realm of athletic prowess.