What is the climax of the story ''Raymond's Run'' by Toni Cade Bambara?

The climax of Toni Bambara's "Raymond's Run" occurs with the action described in the title. As Hazel Elizabeth Deborah Parker races during the May Day race, she glances to the other side of the fence and sees her brother Raymond speeding along with his arms at his side and the palms of his hands tucked up behind him, and she is stunned.

[i]t’s the first time I ever saw that and I almost stop to watch my brother Raymond on his first run.

Squeaky's remark on Raymond's running indicates how thrilled she is with her brother's ability. His style is unique, and his speed incredible. Fortunately, Squeaky catches herself in time and rushes past the white ribbon to win first place. Although she jumps up and down, Squeaky is more excited about Raymond's run. She notes that the crowd must think that she is thrilled about her win rather than about her brother's amazing accomplishment. As Raymond climbs over the fence, Squeaky grows even more excited,

By the time he comes over I’m jumping up and down so glad to see him—my brother Raymond, a great runner in the family tradition.

After realizing Raymond can also run swiftly, Squeaky considers the idea of being his coach. No longer focused on her own running, Squeaky looks at Gretchen, who smiles and recognizes Squeaky as the winner. Squeaky returns the respect, realizing Gretchen can help her coach Raymond.

We stand there with this big smile of respect between us. It’s about as real a smile as girls can do for each other.

Squeaky's consideration for her brother Raymond's talent at the climax of the story leads to her resolution to ask Gretchen to help her train Raymond. Truly, Hazel Elizabeth Deborah Parker matures from her experiences on May Day.