Bohdan Lalka was born in Rohatyn, Ukraina on July 3, 1944. After six years years in a German displaced persons camp he came to the United States with his family at the age of eleven.
Don learned his soccer in Rochester, New York. While at Franklin High School he was picked as an All-Scholastic choice. He later played soccer while attending Brockport State Teachers College. He also played in the Rochester Soccer League for the Rochester Ukrainians and the Rochester Italians.
Don started his professional career with Toronto Ukraina in the National Soccer League in the 1965 season. He helped the Ukrainians win the 1965 NSL League championship and the play-off championship.
He spent the winter of 1965-1966 with the Rochester Ukrainians, before returning to Toronto Ukraina. Toronto Ukraina finished the 1966 NSL season in third place.
The 6’0″ and 175 lbs fullback then spent the next seasons playing in the American Soccer League. After starring for Newark Ukrainian Sitch in the 1966-1967 season he was picked to play for an Ukrainian All-Star team against the touring Dundee Football Club. The Scottish club beat the Ukrainian All-Stars 4-1, before 4,000 fans. Don was picked as the Ukrainians Most Valuable Player
Then followed spells with Rochester Lancers, Syracuse Scorpions and Philadelphia Spartans in the American Soccer League. In December 1967 he was drafted by Houston Stars of the North American Soccer League. However, Rochester Lancers refused to release him.
From 1970 until 1972 he coached East High School in Rochester. He did not play professionally in the 1970 season, but spent the 1971 season with Syracuse Suns in the American Soccer League.
On July 18, 1975, he was appointed as head coach at St. John Fisher College. Don had been coaching the Hungarian-American club in the 1974 season.
His record at St. John Fisher College was:
| Season | W | L | T |
| 1975 | 7 | 6 | 2 |
| 1976 | 5 | 10 | 0 |
| 1977 | 3 | 10 | 2 |
| 1978 | 3 | 9 | 1 |
| 1979 | 6 | 8 | 0 |
| 1980 | 3 | 12 | 0 |
After five years as the soccer coach at St. John Fisher College, he was appointed as the head coach of American Soccer League club Rochester Flash. The Flash ended the 1981 American Soccer League. season with a 11-12-5 record.
On July 20, 1982 Don was fired as both head coach and general manager of Rochester Flash. His record with the Flash in the 1982 ASL season was 5-7-2.
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