
International One Design · World Championship
IOD Worlds2027
Eighteen identical boats. One week on the Swedish west coast. One world champion.
- Dates
- 12–18 June 2027
- Venue
- Almösund, Sweden
Until the first gun
Programme
Seven days
Saturday 12 – Friday 18 June 2027. Four to five days of racing, a lay day mid-week, and a week ashore in Almösund.
Day 01 · Saturday
12 June
Arrival
- Arrival
- Registration opens
Day 02 · Sunday
13 June
Opening
- Registration continues
- Opening ceremony
- Practice race, possibly followed by the first race of the championship
Day 03 · Monday
14 June
Racing
- Championship racing
Day 04 · Tuesday
15 June
Racing
- Championship racing
Day 05 · Wednesday
16 June
Lay day
- No racing scheduled
Day 06 · Thursday
17 June
Racing
- Championship racing
Day 07 · Friday
18 June
Racing
- Championship racing
- Prize giving
- Regatta dinner
Ashore
A social programme for sailors and guests is being put together. Details to follow.

The place
Bohuslän
This coast is granite and water — bare rock scoured smooth by ice, split into thousands of islands, with the sea running between them in long fjords.
Tjörn is the sixth largest island in Sweden, an hour north of Gothenburg and tied to the mainland by the Tjörn bridge. Almösund sits at its northeast corner, beneath the span. Askeröfjorden opens north of the bridge, Hakefjorden runs south towards Älgön, and Stenungsund is the town on the mainland shore opposite.
Which of that water the championship races on will be settled closer to the event. Either way it is fjord rather than open sea — sheltered, and walled by rock.
In the middle of June, this far north, the light barely leaves. Racing finishes and the evening goes on for hours.

The class
International One Design
The International One Design is a 33-foot keelboat drawn in 1936 by the Norwegian naval architect Bjarne Aas. Nine decades on, the boats are still built and raced to one strict set of measurements.
That is the whole point of the class. Every boat is the same, so nothing separates the fleet but the people sailing it — starts, shifts, boat handling, nerve. It is one of the purest tests in keelboat racing.
Fleets race on both sides of the Atlantic, and the World Championship moves between them. In 2027 it comes to Almösund, on the Swedish west coast.