#1 Longest gap between first and latest stints as World Number 1
Many players have come and gone in the last 15-16 years, but Federer still remains a potent force to reckon with. In fact, even players who made their professional debut much after Federer entered the tennis world have long gone.
Federer's supreme fitness is largely attributed to his style of play - all of his shots are just poetry in motion and he makes them look so effortless. Of late, his scheduling of tournaments, considering that he is now in his late 30s, has won him a lot of praiseworthy mentions.
Apart from a brief spell in 2016 where he had to take time off due to a back issue, Federer has kept himself injury free. Since ascending to the top of the ATP rankings for the first time on February 2, 2004, Federer has had 6 stints at the top. His latest rise to the summit came on June 18, 2018, and the gap between his first and latest rise to the top is 14 years, 136 days - an all-time record.
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