Canada had qualified a team of two boys and one girl.
Eight teams were already qualified, including China as the host country.
China qualified a team in both the men's and the women's tournaments.
In 1974, a final round was introduced to qualify a second team to the top level.
Each year 40 teams are qualified to represent their country at the world final of the event.
The teams are qualified based on how well they did in the national tournament.
Placing in the top four qualified a team to move on to the final round.
One team in each event was qualified to represent Canada.
South Korea qualified a team of 18 players for the men's tournament.
Mexico qualifies a men's and women's team as the host nation.
