Constantin Frantzen is a German professional tennis player specializing in doubles, known for his rapid rise on the ATP Tour. This tag page features news, articles, and updates covering his career milestones, including his ATP doubles main draw debut in 2023, multiple finals appearances in 2024, and his first ATP doubles title at the 2025 Chengdu Open. It highlights his collegiate tennis background at Baylor University and his achievement of reaching a career-high doubles ranking of world No. 42. This tag serves as a comprehensive archive for tracking Frantzen’s professional progress and significant performances in doubles tennis.
