Jones Ralfy Jansen
Jones Ralfy Jansen is an Indonesian-born German badminton player who currently represents Germany. He was a former PB Djarum players and has joined that club in 2007. In 2010, he awarded as the best Djarum player. He won his first senior international title at the 2013 Portugal International tournament in the mixed doubles event partnered with Keshya Nurvita Hanadia. He also won the 2014 Finnish and Turkey International tournaments with his sister Cisita Joity Jansen.
Personal life
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.Achievements
Asian Junior Championships
Boys' doubles| Year | Venue | Partner | Opponent | Score | Result | |||||||||||||||
| 2010 | Stadium Juara, Kuala Lumpur, Malaysia |  BWF Grand Prix (1 runner-up)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 and played between 2007 and 2017.Men's doubles
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