A breadstick is the tennis slang term for winning a set 6-1. The term "breadstick" refers to the shape of the number 1, which resembles a breadstick. When a player wins a set 6-1, it is colloquially referred to as a "breadstick" due to the 1 score.

Breadsticks are more common than bagels (winning a set 6-0), but are still an impressive feat. A double breadstick means winning two sets 6-1, 6-1 to sweep a match.