Endurance athletes are no exception to the current healthy blood pressure rule: Systolic under 120, diastolic under 80.“Resting Blood Pressure Values of Adult Athletes” found cyclists had the highest blood pressure amongst 3,700 athletes studied. The cyclists were young (avg 24 yrs old) and trained 23.8 +/- 6.6 hrs/wk and had an average Systolic pressure over 140.