Lucas Miedler
Lucas Miedler is an Austrian professional tennis player.
He has a career-high ATP doubles ranking of world No. 23 achieved on 10 November 2025. He has a career high singles ranking of No. 201 achieved on 15 October 2018.
He has won 11 doubles titles on the ATP Tour, seven with compatriot Alexander Erler, at the home tournaments in 2021 and in 2023 Kitzbühel, in 2022 and in 2024 Vienna, as well as in Acapulco, Munich and Antwerp.
Junior career
He won the boys' doubles at the 2014 Australian Open where he partnered with Australian Bradley Mousley, defeating the French duo of Quentin Halys and Johan-Sébastien Tatlot 6–3, 7–6.Professional career
2015: ATP debut
In 2015, Miedler made his ATP World Tour main draw debut by qualifying to the first round of the Vienna Open, where he lost in three sets to Latvian Ernests Gulbis.2021–2022: Maiden ATP and ATP 500 doubles titles
At the 2021 Generali Open Kitzbühel, he won the doubles title partnering Alexander Erler.The Austrian team of Erler/Miedler clinched their second and biggest title on home soil at the ATP 500 2022 Erste Bank Open without dropping a set.
2023: Major, Masters debuts & first wins, ATP 500 title, top 35
At the 2023 Australian Open the pair Miedler/Erler made their Grand Slam debut where they defeated tenth seeds Rohan Bopanna and Matthew Ebden.At the ATP 500 Mexican Open Miedler won his third title with compatriot Erler defeating en route top seeds Wesley Koolhof and Neal Skupski. As a result Miedler made his top 50 debut on 6 March 2023 at world No. 43.
Miedler partnering Cameron Norrie made his Masters debut at the 2023 BNP Paribas Open and won his first match at the Masters 1000 level, defeating seventh seeds Hugo Nys and Jan Zielinski. He also made his debut with Erler at the Masters in Miami.
At the 2023 Grand Prix Hassan II the pair Miedler/Erler reached the final defeating fifth seeds Maxime Cressy and Albano Olivetti. They lost in the final to Andrea Vavassori and Marcelo Demoliner.
They won their fourth title at the 2023 BMW Open in Munich, Germany.
At the 2023 Generali Open Kitzbühel, they won their fifth doubles title. As a result he reached the top 35 in the ATP doubles rankings on 14 August 2024.
2024: Two doubles titles with Erler
In October, Miedler won back-to-back doubles titles partnering Alexander Erler, claiming the European Open in Antwerp followed by the Vienna Open.2025: Three more titles with Cabral, top 25
In October, Miedler with new partner Francisco Cabral reached his 14th final at the ATP 500 2025 Erste Bank Open, but lost to Julian Cash and Lloyd Glasspool.Miedler and Cabral closed the 2025 season with a third title in Athens defeating Santiago González and David Pel in the final, ending in the ATP Live Doubles Teams Race in 11th position. As a result Miedler finished the season ranked in the top 25 at world No. 23 in the ATP doubles rankings on 10 November 2025.
Doubles performance timeline
''Current through the 2025 Hellenic Championship.''ATP career finals
Doubles: 16 (11 titles, 5 runner ups)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | ||||||||||||
| Win | 1–0 | 2021 Generali Open Kitzbühel – Doubles| | Austrian Open Kitzbühel, Austria | 250 Series | Clay |  ATP Challenger finalsSingles: 1 (1 runner-up)Doubles: 23 (12 titles, 11 runner-ups)
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