ATP 250 tournaments

The ATP 250 tournaments (previously known as the ATP World Tour 250 tournaments, ATP International Series, and ATP World Series) are the lowest tier of annual men's tennis tournaments on the main ATP Tour, after the four Grand Slam tournaments, ATP Finals, ATP Masters 1000 tournaments, and ATP 500 tournaments.

As of 2024, the series included 38 tournaments, with 250 ranking points awarded to each singles champion—which accounts for the name of the series. Draws consist of 28, 32, or 48 for singles and 16 for doubles.

In 2025, the series includes only 30 tournaments after the retirement of three tournaments (Atlanta, Córdoba and Lyon), the downgrade of two (Estoril and Newport) and the upgrade of three tournaments to the 500 level (Dallas, Doha and Munich).

Thomas Muster holds the record for most singles titles at 26, while Mike Bryan holds the record for most doubles titles won with 46.

Historic names

1990–1999
ATP World Series

2000–2008
ATP International Series

2009–2018
ATP World Tour 250

2019–present
ATP Tour 250

ATP points

Players with byes receive first round points.
Parentheses indicate points for 48-player draw.

Tournaments

The 2025 ATP Tour includes:

Defunct or Upgraded/Downgraded

^ upgraded to ATP 500 event. ^ Parma downgraded to Challenger 125 in 2022, Newport in 2025. Estoril to 175 in 2025.

Singles champions

ATP International Series

ATP World Tour 250