On the atptour site, next to the player's ATP rank there is the letter T. What does it mean?
https://www.atptour.com/en/players/rogerio-dutra-silva/sc73/rankings-history
On the atptour site, next to the player's ATP rank there is the letter T. What does it mean?
https://www.atptour.com/en/players/rogerio-dutra-silva/sc73/rankings-history
If you check the ranking, you can see that this is always shown next to several players - so it means that the players are tied for the same position.
For example, here is one screenshot from ATP website:
The screenshot is taken from the current status of this page: https://www.atptour.com/en/rankings/singles/?rankDate=2019-11-25&countryCode=all&rankRange=1001-1100
This question contains more detail on criteria that are user (beside the points) in the ATP rankings: What tie-breaker is used in the ATP ranking, when two players have the same number of points? (So T next to the ranking means that the players have the same number of points and also the other ranking criteria are the same.)