Novak Djokovic tied Steffi Graff for the most weeks as the number-one player in the world and he'll become the sole owner of that record next week.
Djokovic has been eyeing this record for a long time and he's going to get it next week and nothing can stop it. Carlos Alcaraz did win the Argentina Open a few days ago to cut the difference to 600 points but he can't overtake him because Djokovic isn't defending too many points and will only drop 90 points. Even if Alcaraz bags the 500 points from Rio he still won't overtake Djokovic due to ATP tiebreak rules.
The rule states that Djokovic will retain the number one ranking because he played fewer events than Alcaraz (15 to 18). That will allow him to become the player who spent the most weeks as number one in the world ever - 378 weeks. Alcaraz could get the number one spot back if he manages to wreak havoc in North America and Djokovic remains barred from entering the country.