International Optimist Dinghy Association
Calendar
Continent
Type
International
South America
San Isidro – Buenos Aires, Argentina
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San Isidro Labrador Championship
Club Nautico San Isidro
San Isidro – Buenos Aires, Argentina
Bourgas, Bulgaria 
Morocco
International
Europe
Palic, Serbia
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South East European Open Optimist Cup
Sailing club Palic
Palic, Serbia
Italy
Constanta, Romania
International
North America
Drakes Channel, British Virgin Islands
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BVI Dinghy Championships
Royal BVI Yacht Club
Drakes Channel, British Virgin Islands
International
Europe
Kiel-Schilksee, Germany
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Goldener Optimist
Turn-und Sportverein Schilksee, Sailing Department
Kiel-Schilksee, Germany
International
Europe
Bodrum, Türkiye
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Bodrum International Optimist Regatta
B.B.Bodrum Sports Club, Sailing Branch
Bodrum, Türkiye
Netherlands
