The WTRC is one of the biggest virtual team racing events around. Lately there has been some muttering within the vsk-community about a national criteria that was introduced after the 2010 WTRC.
As of the WTRC 2010 eligibility to race for the VTC is conditional for eligibility to race in the WTRC. The VTC introduced a national criteria teams must comply with. 

Therefore the WTRC now demands teams represent a country. The regulation is described in the VTC SI §1.3 as follows: 

1.3 NATIONAL CRITERIA

1. Each team shall represent a country.
2. All members of the team shall be citizens of the country the team is representing, except when a member is approved according to article 1.3.3.
3. The VTC Race Committee may approve use of an international member under one of the following premices:
* The international has been a member of the team at least since 2009.
* The country the team is representing does not have enough VSK sailors in order to line up a full team.
* The country the international member is citizen of does not have enough VSK sailors in order to line up a full team. 
4. The teams may use a maximum of 1 international member on the water at a time.