Karl Pedersen participated many times in the finals of Danish Chess Championships and won silver medal in 1967.
Karl Pedersen played for Denmark in the Chess Olympiad:[1]
Karl Pedersen played for Denmark in the European Team Chess Championship:[2]
- In 1970, at fifth board in the 4th European Team Chess Championship in Kapfenberg (+2, =2, -3).
Karl Pedersen played for Denmark in the World Student Team Chess Championship:[3]
- In 1967, at third board in the 14th World Student Team Chess Championship in Harrachov (+1, =5, -1).
Karl Pedersen played for Denmark in the Nordic Chess Cups:[4]
- In 1971, at first board in the 2nd Nordic Chess Cup in Großenbrode (+1, =1, -3) and won team silver medal,
- In 1972, at first board in the 3rd Nordic Chess Cup in Großenbrode (+3, =0, -1) and won team silver medal.
