Place one 10-inch tortilla flat on a clean work surface.
Spoon some of the prepared chicken salad with grapes onto the center of the tortilla, leaving a clear border around the edges for folding.
Fold the left and right sides of the tortilla inward over the filling.
Fold the edge closest to you up over the filling.
Roll the tortilla away from you, keeping the wrap snug by tucking the filling in as you roll.
Use a sharp knife to cut the wrap in half, if desired, and serve.