Quote from : The Mysterious Benedict Society and the Prisoner's Dilemma Book

So what's your team called?" asked Kate, twisting her legs into a pretzel-like configuration, "We're called the Winmates because we're inmates who win." Kate looked back and forth at Reynie and Constance, searching their expression for signs of delight. "You gave yourselves a name?" asked Constance. Now it was Kate's turn to be baffled. "You didn't? How can you have a team without a name?