Below you can find the Begun in 1715 the doggett's coat and badge contest on the thames river eventually became this sport's oldest race Jeopardy Words Answer. The answer to Begun in 1715 the doggett's coat and badge contest on the thames river eventually became this sport's oldest race has 6 letters. This clue belongs to the Sports category and is part of Jeopardy Word Level 1852. If you scroll near the bottom you will find other clues and answers part of level 1852