What “best ranking” means
A player’s best ranking is the highest position he has ever reached in the official ATP singles ranking.
How we update it
Every Monday, after the ATP publishes its official ranking, we record where each player stands. When a player beats his previous best, his record and its date are updated. A record never gets worse.
Live rankings don’t count
During the week, “live” rankings move with every match. They become official only the following Monday, so we only record official Monday rankings.
Who is in
Every player whose best ranking is between 1 and 100. Active players are those in this week’s ATP top 600. The all-time ranking keeps everyone, retired players included.
Sources
The official ATP singles ranking, recorded weekly. Career highs reached before we started recording come from public records of the official ranking. When we don’t know the exact date of a record, we leave it blank rather than guess.
Photos
We only use player photos from Wikimedia Commons, always with the author and licence credited.
Players of the past
Retired players and the dates of older records come from the “Highest ranking” shown on each player’s page on Wikipedia (text under CC BY-SA), and from Wikidata (CC0) for nationality and date of birth. We only include records set from 23 August 1973, when the computerised ATP ranking began. Records without an exact date are added only after a manual check.