A mower deck grass collector chute 112 includes an inlet 113. The inlet is positioned under the horizontal deck surface and has a curved surface extending forwardly under the mower deck around the perimeter of a first cutting chamber. A forward end 125 of the curved surface is in front of the first cutting chamber or in front of and to the right of a mower blade spindle. In one embodiment, the inlet is positioned under a multi-chamber mower deck and the inlet is connected to an outlet by a tubular portion. The curved surface of the inlet may slope upwardly from a forward end to a rearward end. In further embodiments the inlet is connected to a side discharge opening in a mower deck, and a tubular portion 117 that extends upwardly and rearwardly to an outlet 115.
