National
Europe
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2018 Volvo Gill British National and Open Optimist Championships
Plas Heli/Clwb Hylio Pwllheli Sailing Club
Great Britain
National
North America & Caribbean
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2018 CORK International Optimist Regatta
Portsmouth Olympic Harbour, Kingston
Canada
National
Europe
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Open Czech National Championship
Lipno lake, Cerna v Posumavi
Czech Republic
International
Europe
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Ioannideia 2018 Optimist Mediterranean Championship
Famagusta Nautical Club, Limassol
Cyprus