Although not revealed in the book, Kevin Lewis's real name is Jeff Ma, an MIT student who graduated with a degree in Mechanical Engineering in 1994. Jeff has since gone on to found a fantasy sports company called ProTrade (a stock market simulation game).[2]

　　Mezrich acknowledges that Lewis is the sole major character based on a single, real-life individual; other characters are composites. Nonetheless, Lewis does things in the book that Ma himself says did not occur.[1]

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