Sam was faster than Dean.
Always had been.
He had expected to beat Dean, but not smoke him.
Sam was halfway around the track before he realized something was not right.
He looked back to see Dean on the ground, grabbing his leg, writhing in obvious agony.
Sam ran faster than lightening back to him, and was at his side in an instant.
"Dean, what the hell?" Sam questioned, suspiciously.
Dean was half laughing, half crying when he looked up and answered Sam.
"C…cramps, not e…evil."
"A Charley horse?" Sam was hysterical.
And they laughed all the way home.