Keep track of their husband’s ranking
The wives of NASCAR drivers are often interviewed and in the spotlight. They are not only expected to come and support their partners but also to understand all of the details of the sport. Even if they weren’t an expert on racing at first, they will quickly become one.
Part of understanding the races is constantly being aware of their husband’s ranking. It can change after every race, so they need to keep up to date. Honestly most of the wives eagerly await the rankings as they are so tied to their partner’s success.