Federer's 237 consecutive weeks at no.1.
That will 100 pct stand the test of time, no player has ever been as dominant as Federer was in his peak
Federer's 5 consecutive titles at 2 different GS.
That's possible, considering that his contemporaries, Nadal and Djokovic are such all round players. Nadal has 4 straight RG and 5 straight Wimby finals, plus Borg came close too.
Federer's 8+ Wimb titles
This is unlikely to survive forever. He's still just 1 ahead of Pistol Pete, so it's possible that another guy could come along and win a ton of Wimbledon titles.
Federer's 5+ titles at 3 different GS's.
Absolutely impeccable record. Unlikely to be broken, this goes back to the point that no player has ever dominated like Federer.
Federer's 11 GS titles in 4 years
Nadal got 10 in 5 years and Sampras came close, so again not out of reach for a dominant player in a weak era
Nadal's 10+ RG titles
Yeah. No chance of being broken
Nadal's triple la Decima
No chance either. The longevity and lasting dominance is unparalleled.
Djokovic's 6+ AO titles
6+ is misleading. Roy Emerson already has 6. But the Djoker is just adding to his 6 and by the end might get a La Decima of his own in Melbourne. That will not be broken.
Djokovic's 3 AO-IW-Miami triples
Wait, doesn't the Federer already have that?
Are there others I have missed?
Nadal's "Decade of Domination" 10 years with a Grand Slam. Very unlikely to be broken.
Djokovic 4 consecutive World Championship titles. Could be broken by a crazy-good indoor player (ex. Federer-style game) but incredible achievement for Djokovic who isn't even a fast court guy.
Nadal-Djokovic 50 matches. Epic rivalry, played greatest match ever at Australian Open 2012, unlikely to be broken.