Obstacle race and Potato race

Obstacle race noun - A race in which competitors must negotiate obstacles.

Potato race and obstacle race are semantically related. In some cases you can replace phrase "Potato race" with "Obstacle race", this phrases are similar.

Potato race noun - A novelty race in which competitors move potatoes from one place to another one at a time.

Obstacle race and potato race are semantically related. Sometimes you can replace phrase "Obstacle race" with "Potato race", this phrases are similar.