No. 1 ranked men's singles player List of ATP number 1 ranked singles players World No. 1 No. 1 ranked men's singles player Number 1 spot World No.1 World No. 1 Weeks at No. 1 No. 1 ranked men's singles player number 1 world No. 1 position en:List of ATP number 1 ranked singles players List of ATP number 1 ranked singles players No. 1 ranked men's singles player ranked No. 1 world no. 1 84 weeks World No. 1 237 consecutive weeks at No. 1 Rekord von Pete Sampras Number 1 spot world No. 1 in men's singles tennis