Past Contests
| Year | Host city | Link |
|---|---|---|
| 2003 |  Borovets, Bulgaria |
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| 2004 |  Moscow, Russia |
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| 2005 |  Leiden, Netherlands |
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| 2006 |  Tartu, Estonia |
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| 2007 | St. Petersburg, Russia |
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| 2008 | Slanchev Bryag, Bulgaria |
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| 2009 |  Wrocław, Poland |
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| 2010 |  Stockholm, Sweden |
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| 2011 | Pittsburgh, USA | See Details |
| 2012 |  Ljubljana, Slovenia |
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| 2013 | Manchester, UK | See Details |
| 2014 |  Beijing, China |
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| 2015 | Blagoevgrad, Bulgaria |
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| 2016 |  Mysore, India |
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| 2017 |  Dublin, Ireland |
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| 2018 |  Prague, Czechia |
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| 2019 |  Yongin, Republic of Korea |
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| 2021 |  Ventspils, Latvia |
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| 2022 |  Castletown, Isle of Man |
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