This is something I’ve been looking into for quite awhile as my systolic has been over 140 in the past (when the stock market was crashing…), and is now typically around 125-135 even without the stress of a job (60-75 diastolic, RHR 40-45). From the research I’ve found, it seems to be fairly typical, even for athletes still in high school (most studies on this I’ve seen has been specific to this age group), and is described as “athlete’s heart” in the article below.
“Many conditioned athletes (particularly young men) have “athlete’s heart”: very high resting stroke volume and cardiac output with low PVR and heart rate.17 Pulse pressure and SBP are high in these individuals, very often in the range of pre-HTN and occasionally in the range of stage 1 HTN, because cardiac stroke volume is increased.18,19 DBP is usually normal.”
http://onlinelibrary.wiley.com/doi/10.1111/j.1751-7176.2009.00100.x/full
The question, though, of whether this “athlete’s heart” is more dangerous for heart disease than a normal person with systolic hypertension remains to be seen. I’ve yet to find the evidence to say that it is. It seems to me most just play it safe and say that it is, but I’ve read some stuff from doctors in the past that seemed to (very carefully) suggest that it might not be quite as dangerous.