Say two people are racing, if one has a higher heart beat what does that mean?

Okay my friend is trying to do some kind of study…she claims if someone is racing with another person and their heartbeat is faster than the other racer…that their more unhealthy for having a higher heartbeat then the other racer.

I’m trying to explain to her that that doesn’t make sense.
Her other theory is that someone who works out every day will have a healthier heart then someone who doesn’t and that if two people were in a race and one was athletic and the other was not, that the more non-athletic one would have a higher heart rate.