| Jones Ralfy Jansen | |
| Country: | Indonesia (2010–2011) Germany (2012–present) |
| Birth Date: | 1992 11, df=yes |
| Birth Place: | Jakarta, Indonesia |
| Residence: | Saarbrücken, Germany |
| Height: | 1.75 m |
| Handedness: | Right |
| Event: | Men's & mixed doubles |
| Highest Ranking: | 22 (MD with Josche Zurwonne 28 June 2018) 24 (XD with Linda Efler 20 December 2022) |
| Current Ranking: | 105 (MD with Kenneth Neumann), 97 (XD with Linda Efler) |
| Date Of Current Ranking: | 12 March 2024 |
| Bwf Id: | C4301ECB-7857-4A20-8675-5FF9FA1FF5A3 |
Jones Ralfy Jansen (born 28 April 1992) is an Indonesian-born German badminton player who currently represents Germany.[1] [2] He was a former PB Djarum players and has joined that club in 2007. In 2010, he awarded as the best Djarum player.[3] He won his first senior international title at the 2013 Portugal International tournament in the mixed doubles event partnered with Keshya Nurvita Hanadia.[4] He also won the 2014 Finnish and Turkey International tournaments with his sister Cisita Joity Jansen.[5] [6]
His father Joy Jansen is German, while his mother Meity Rumayar is Indonesian. He was born and raised in Indonesia with his elder sister Cisita Joity Jansen who is also a badminton player.[7]
Boys' doubles
The BWF Grand Prix had two levels, the Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) and played between 2007 and 2017.
Men's doubles
BWF Grand Prix Gold tournament
BWF & IBF Grand Prix tournament
Men's doubles
| Year | Tournament | Partner | Opponent | Score | Result | |
|---|---|---|---|---|---|---|
| 2012 | Slovenian International | Andreas Heinz | Zvonimir Đurkinjak Zvonimir Hölbling | 21–17, 17–21, 12–21 | Runner-up | |
| 2014 | Polish International | Daniel Benz |  Adam Cwalina Przemysław Wacha | 8–11, 11–6, 5–11, 11–8, 9–11 | Runner-up | |
| 2016 | Estonian International | Josche Zurwonne | Martin Campbell Patrick MacHugh | 21–15, 21–18 | Winner | |
| 2016 | White Nights | Josche Zurwonne |  Bastian Kersaudy Julien Maio | 21–15, 21–14 | Winner | |
| 2016 | Irish Open | Josche Zurwonne | Liao Min-chun Su Ching-heng | 27–25, 23–21 | Winner | |
| 2016 | Italian International | Josche Zurwonne |  Richard Eidestedt Nico Ruponen | 21–17, 21–18 | Winner | |
| 2019 | Finnish Open | Peter Käsbauer | Muhammad Shohibul Fikri Bagas Maulana | 17–21, 17–21 | Runner-up | |
| 2019 | Lagos International | Peter Käsbauer |  Arjun M.R. Ramchandran Shlok | 21–11, 21–8 | Winner | |
| 2019 | Irish Open | Peter Käsbauer | Alexander Dunn Adam Hall | 21–19, 17–21, 21–18 | Winner | |
| 2022 | Uganda International | Jan Colin Völker | Boon Xin Yuan Wong Tien Ci | 15–21, 14–21 | Runner-up | |
| 2022 | Mexican International | Jan Colin Völker |  Shuntaro Mezaki Haruya Nishida | 15–21, 16–21 | Runner-up | |
| 2023 | Egypt International | Kenneth Neumann | Louis Ducrot Quentin Ronget | 14–21, 17–21 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result | |
|---|---|---|---|---|---|---|
| 2013 | Portugal International | Keshya Nurvita Hanadia | Anders Skaarup Rasmussen Lena Grebak | 21–16, 18–21, 21–16 | Winner | |
| 2013 | Slovenian International | Cisita Joity Jansen | Zvonimir Đurkinjak Staša Poznanović | 12–21, 18–21 | Runner-up | |
| 2014 | Finnish International | Cisita Joity Jansen |  Alexandr Zinchenko Olga Morozova | 15–21, 21–17, 21–16 | Winner | |
| 2014 | Turkey International | Cisita Joity Jansen | Marcus Fernaldi Gideon Gabriela Stoeva | 17–21, 21–17, 21–12 | Winner | |
| 2015 | Romanian International | Cisita Joity Jansen | Tarun Kona N. Sikki Reddy | 7–11, 8–11, 4–11 | Runner-up | |
| 2022 | Ukraine Open | Linda Efler | Jan Colin Völker Stine Küspert | 21–12, 21–11 | Winner | |
| 2023 | Egypt International | Julia Meyer | Koceila Mammeri Tanina Mammeri | 21–19, 21–18 | Winner | |
| 2024 | Estonian International | Thuc Phuong Nguyen | Ludwig Axelsson Jessica Silvennoinen | 21–14, 21–18 | Winner |
BWF International Challenge tournament
BWF International Series tournament