#2 Fewest matches played by a country in a World Cup
Indonesia holds the present record for the fewest matches played by a country in a FIFA World Cup. Indonesia, then known as Dutch East Indies, qualified automatically for the 1938 FIFA World Cup. Alas, Hungary hammered them 6-0 in their first game and sent them home packing.
FIFA has since changed their format of the World Cup. Now, all countries have to participate in a group stage in order to qualify for the knockout rounds. That means, all the countries have to play a minimum of three matches if they qualify for the World Cup.
So, unless FIFA changes their format again, which is highly unlikely, this record may never be broken. However, if Indonesia qualifies for a FIFA World Cup, they could erase their names from the history books.