Pete Sampras finished as year-end No. 1 six times (1993-1998). This was the record until Novak Djokovic surpassed it with seven year-end No. 1 finishes. However, Djokavic is not listed as an option, so among the given choices, Sampras is correct. Roger Federer has five year-end No. 1 finishes, and Jimmy Connors has five.