He competed in the 1936 Summer Olympics on the Estonia men's national basketball team.
Saar initially played football for Tallinna SK Siirius and in 1938 and 1942, was part of the team that were the winners of the Estonian Cup.
He later trained and played ice hockey under the supervision of Heinrich Paal.
[1] Following the Soviet occupation of Estonia in 1944, Saar fled to Sweden, then to Canada in 1951.
This biographical article relating to an Estonian basketball figure is a stub.