The IMOCA 60 ("Open 60"), is a class of advanced monohull sailing yacht administered by the International Monohull Open Class Association (IMOCA).[1] It is dominant in single and double handed ocean racing.

An IMOCA 60.
DesignDevelopment class
LOA18 m (60 ft)

Class DescriptionEdit

This class is of "open" design, meaning that it does not represent a fixed boat design. It allows any design provided it meets the class restrictions.[2]

Design restrictions include the length (between 59 and 60 feet (18 m)) and maximum draft (4.5 metres (15 ft)). There are no explicit restrictions on beam, mast height or sail area. There are rules for flotation, self-righting capability, and safety and survival equipment.

It is one of several classes that are defined by a "box rule", which provides its limiting design parameters.[3]

This class is recognised by World Sailing.[4]


Ropeye. IMOCA - International Monohull Open Class Association. Ystad 2017.

The rule was first set as a "Recognised Class" in 1998. In 2001, the rule was registered as an "International Class". It underwent a revision in April 2008.[2]

IMOCA racesEdit

These races are open to, but not necessarily limited to this class.

See alsoEdit


  1. ^ "Classes". Retrieved 21 April 2012.
  2. ^ a b "INTERNATIONAL MONOHULL OPEN CLASS ASSOCIATION I.M.O.C.A. : OPEN 60' ISAF INTERNATIONAL CLASS : Class Rules - 2008 : Version 1" (PDF). Retrieved 4 July 2018.
  3. ^ "ORC - World Leader in Rating Technology". Retrieved 4 July 2018.
  4. ^ "Open 60 Monohull Classes and Equipment..." Retrieved 2016-11-12.
  5. ^ Barcelona World Race
  6. ^ "Agreement will see IMOCA 60 boats in next race". Volvo Ocean Race 2017-18.

External linksEdit