ATP Brisbane Qual 12/30 01:30 26 Ernesto Escobedo v James Duckworth 6-2,4-6,6-4
Australian Open 2017 01/16 05:10 23 James Duckworth v Paolo Lorenzi 4-6,6-7,7-6,4-6
Challenger Toyota 11/20 03:00 29 James Duckworth v Tatsuma Ito 7-5,4-6,6-1
Challenger Toyota 11/19 02:00 28 James Duckworth v Daniel Masur 6-3,7-6
Challenger Toyota 11/18 03:55 27 Yoshihito Nishioka v James Duckworth 3-6,2-6
Challenger Toyota 11/17 02:00 26 Yuya Kibi v James Duckworth 4-6,4-6
Challenger Toyota 11/16 01:00 25 Axel Michon v James Duckworth 3-6,4-6
Challenger Kobe 11/13 04:00 29 James Duckworth v Hyeon Chung 4-6,6-7
Challenger Kobe 11/12 03:00 28 Duckhee Lee v James Duckworth 6-7,4-6
Challenger Kobe 11/11 03:00 27 Laurent Lokoli v James Duckworth 5-7,6-7
Challenger Kobe 11/10 02:00 26 John-Patrick Smith v James Duckworth 3-6,2-6
Challenger Kobe 11/09 03:45 25 Shintaro Imai v James Duckworth 0-6,7-6,4-6
Challenger Canberra 2 11/06 01:30 29 James Duckworth v Marc Polmans 7-5,6-3
Challenger Canberra 2 11/05 00:00 28 Jordan Thompson v James Duckworth 3-6,4-6
Challenger Canberra 2 11/04 03:40 27 Daniel Masur v James Duckworth 1-6,4-6
Challenger Canberra 2 11/03 02:00 26 Sumit Nagal v James Duckworth 3-6,3-6
Challenger Canberra 2 11/01 04:05 25 Gavin Van Peperzeel v James Duckworth 7-6,3-6,4-6
Challenger Traralgon 10/28 01:50 27 James Duckworth v Grega Zemlja 4-6,6-3,3-6
Challenger Traralgon 10/26 00:20 26 James Duckworth v Omar Jasika 6-1,6-3
Challenger Traralgon 10/24 00:30 25 James Duckworth v Finn Tearney 6-2,6-4
ATP Tokyo 10/05 10:55 26 Juan Monaco v James Duckworth 7-6,6-3
ATP Tokyo 10/04 04:25 25 James Duckworth v Feliciano Lopez Retired
Others 10/02 03:00 46 Matthew Ebden v James Duckworth 2-6,2-6
Others 10/01 03:00 45 James Duckworth v Jared Donaldson 7-6,6-4
ATP Shenzhen Qual 09/25 08:00 46 Ryan Harrison v James Duckworth 4-6,6-4,6-1
ATP Shenzhen Qual 09/24 07:15 45 James Duckworth v Marco Trungelliti 7-5,6-4
US Open 2016 08/31 16:45 24 Jo-Wilfried Tsonga v James Duckworth 6-4,3-6,6-3,6-4
US Open 08/29 22:20 23 James Duckworth v Robin Haase 4-6,7-5,6-3,4-6,6-3
ATP Washington 07/20 23:50 25 John Isner v James Duckworth 6-3,6-4
ATP Washington 07/18 20:00 24 James Duckworth v Tim Smyczek 7-5,6-1

James Duckworth (born 21 January 1992) is an Australian professional tennis player. He has a career-high ATP singles ranking of World No. 46 achieved on 31 January 2022 and No. 185 in doubles achieved on 10 February 2020. Duckworth represented Australia in tennis at the 2020 Tokyo Olympics and the 2022 ATP Cup.

As a junior, Duckworth enjoyed a successful career which included winning three titles and reaching the semifinals of the 2010 French Open.