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Jiří Lehečka (born 8 November 2001) is a Czech tennis player. Lehečka has a career high ATP singles ranking of World No. 59 achieved on 8 August 2022. He also has a career high ATP doubles ranking of World No. 214 achieved on 7 March 2022. Lehečka has a career high ITF junior combined ranking of No. 10 achieved on 11 March 2019. He is currently the No. 1 Czech tennis player in singles.