Challenger Ismaning 10/15 09:30 24 [410] Daniel Altmaier v Jan Choinski [297] 4-6,6-4,7-6
ITF M15 Bad Salzdetfurth 10/13 09:00 29 Stefan Seifert v Jan Choinski 3-6,1-6
ITF M15 Bad Salzdetfurth 10/12 09:00 28 [475] Michal Konecny v Jan Choinski [299] 4-6,3-6
ITF M15 Bad Salzdetfurth 10/11 09:00 27 [389] Robert Strombachs v Jan Choinski [299] 6-3,6-7,2-6
ITF M15 Bad Salzdetfurth 10/10 09:00 26 Ondrej Krstev v Jan Choinski 4-6,3-6
ITF M15 Bad Salzdetfurth 10/08 11:00 25 Osman Torski v Jan Choinski 3-6,2-6
Challenger Barcelona 09/30 13:45 24 Jan Choinski v Daniel Munoz-De La Nava 3-6,6-7
Challenger Barcelona 09/30 12:00 24 Jan Choinski v Adrian Menendez-Maceiras Cancelled
Challenger Szczecin 09/10 09:20 24 [294] Jan Choinski v Alessandro Bega [373] 4-6,1-6
Challenger Genova 09/02 08:00 24 [238] Alejandro Tabilo v Jan Choinski [290] 6-0,6-2
Challenger Como 08/29 15:00 26 [236] Dmitry Popko v Jan Choinski [290] 2-6,6-2,6-1
Challenger Como 08/29 10:20 25 [290] Jan Choinski v Salvatore Caruso [102] 7-6,6-2
Challenger Como 08/26 12:00 24 [280] Marcelo Tomas Barrios Vera v Jan Choinski [290] 2-6,3-6
Challenger Meerbusch 08/17 12:30 28 [239] Pedja Krstin v Jan Choinski [258] 6-4,6-1
Challenger Meerbusch 08/16 13:45 27 [258] Jan Choinski v Louis Wessels [395] 6-3,6-3
Challenger Meerbusch 08/15 16:00 26 [258] Jan Choinski v Aslan Karatsev [270] 6-4,6-7,7-6
Challenger Meerbusch 08/14 09:35 25 Jan Choinski v Daniel Munoz-De La Nava 6-2,6-4
Challenger Augsburg 08/05 09:00 24 [262] Jan Choinski v Renzo Olivo [278] 4-6,4-6
Challenger Sopot 08/02 13:05 27 [187] Filip Horansky v Jan Choinski [276] 6-1,6-0
Challenger Sopot 08/01 14:10 26 [276] Jan Choinski v Jeremy Jahn [420] 6-3,6-7,6-4
Challenger Sopot 07/31 13:40 25 [276] Jan Choinski v Tomislav Brkic [337] 3-6,6-4,6-3
Challenger Prague 07/24 15:35 25 [188] Nikola Milojevic v Jan Choinski [279] 6-3,6-0
Challenger Prague 07/22 10:30 24 [279] Jan Choinski v Aldin Setkic [348] 6-3,6-7,6-2
Challenger Amersfoort 07/18 10:20 26 [287] Jan Choinski v Kimmer Coppejans [144] 6-7,4-6
Challenger Amersfoort 07/16 16:35 25 [265] Thiemo De Bakker v Jan Choinski [287] 2-6,7-5,2-6
Challenger Amersfoort 07/15 15:00 24 [429] Ricardo Ojeda Lara v Jan Choinski [288] 2-6,3-6
Challenger Ludwigshafen 07/01 14:45 24 [488] Daniel Altmaier v Jan Choinski [286] 6-4,7-6
Wimbledon 06/24 10:00 44 [147] James Duckworth v Jan Choinski [284] 6-1,7-5
Challenger Ilkley 06/18 13:20 24 [285] Jan Choinski v Brydan Klein [355] 6-2,5-7,2-6
Challenger Bordeaux 04/29 11:00 24 [387] Andrea Pellegrino v Jan Choinski [285] Retired

Wikipedia - Jan Choinski

Jan Choinski (Polish: Choiński; born 10 June 1996 in Germany) is a Polish-German-British tennis player. Choinski has a career high ATP singles ranking of world No. 126, achieved on 21 August 2023. He represented Germany from the beginning of his career until the end of 2018 and then switched to Great Britain.