|Born||2 May 1991|
|Height||1.74 m (5 ft 8 1⁄2 in)|
|Career record||109 Win, 124 Loss|
|Highest ranking||56 (3 November 2016)|
Vainio was born on Ekenäs in 1991. She first competed internationally in Latvia when she was 14 and she has been in the national team since 2008. She graduated from high school in Espoo Mattlidens gymnasium in 2010, after which she studied for a degree in information management and business administration at Loughborough University in England. In 2013, she moved to Copenhagen, where she studied for a master's degree and was trained by Anu Nieminen at the Copenhagen Badminton Center. She graduated in 2015 and has since been training again in Finland.
Vainio has been ranked eighth in the world and she represented her country at the 2016 Summer Olympics. She lost in the first round of the tournament to the Spanish player Carolina Marín who has been ranked number one in the world.
BWF International Challenge/SeriesEdit
|2016||Peru International||Airi Mikkela||13-21, 17-21||Runner Up|
|2016||Iceland International||Julie Dawal Jakobsen||17-21, 6-21||Runner Up|
|2015||Morocco International||Lianne Tan||21-15, 22-24, 8-21||Runner Up|
|2015||Mauritius International||Airi Mikkela||21-16, 21-11||Winner|
|2015||Iceland International||Mette Poulsen||11-21, 9-21||Runner Up|
|2011||Slovenia International||Carola Bott||13-21, 10-21||Runner Up|
- BWF International Challenge tournament
- BWF International Series tournament
- BWF Future Series tournament
- "Nanna Vainio". Rio 2016. Retrieved 6 August 2016.
- Nanna Vainio, BWFBadminton, Retrieved 28 August 2016
- Mainio Vainio oikealla tiellä, Isaksson, Janne, Issue s. 8–9, Sportpressen, Ajankohta = Talvi 2011–2012, Viitattu = 29.3.2014
- Nanna Vainio, Rio Team: Pelaajat, Retrieved 28 August 2016
- "Carolina Marín".
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