The Cincinnati ATP tournament, officially called the Western & Southern Open, is an annual professional tennis tournament held in Mason, Ohio (near Cincinnati) as part of the ATP Tour Masters 1000 series.

The tournament typically takes place in August, serving as an important warm-up event before the US Open. In 2023, it was held from August 13-20.

Novak Djokovic won the 2023 Cincinnati ATP singles title, defeating Carlos Alcaraz in the final with a score of 5-7, 7-6(7), 7-6(4).

Roger Federer has won the Cincinnati ATP tournament a record 7 times (2005, 2007, 2009, 2010, 2012, 2014, 2015).

The tournament is played on outdoor hard courts, specifically DecoTurf surface which is the same as used at the US Open.

Yes, as an ATP Masters 1000 tournament, it's mandatory for top-ranked players unless they have valid reasons for absence (injury or special exemption).

The singles main draw features 56 players: 44 direct entries, 7 qualifiers, and 5 wildcards. The top 8 seeds receive first-round byes.

The 2023 total prize money was ,600,000, with the singles champion receiving ,019,335 and the runner-up getting 6,630.

Daniel Nestor holds the record with 5 Cincinnati doubles titles (2009, 2010, 2012, 2013, 2014 with different partners).

Tickets can be purchased through the official tournament website (wsopen.com), with various options including single session, series packages, and premium hospitality.

The event combines both ATP (men's) and WTA (women's) tournaments running simultaneously, with equal prize money since 2021 and similar prestige (WTA 1000 level).