Answer:
by telling others that she is going to win the May Day race this year
Step-by-step explanation:
In "Raymond's Run" by Toni Cade Bambara, the main person who challenges Squeaky is Gretchen, a girl who is around the same age as Squeaky and is a runner as well. Gretchen challenges Squeaky by telling others that she is going to win the May Day race this year.