Abstract: A lawn mower includes a cutting deck with first and second cutting blades to form clippings beneath the cutting deck and a baffle system to direct the clipping through a discharge opening. The baffle system includes a baffle wall that at least partially surrounds the first and second cutting blades to define first and second cutting chambers. The baffle wall includes a front baffle wall portion having a front guide surface to guide the clippings from the first and second cutting chambers towards the discharge opening, and a rear baffle wall portion having a concave guide surface and an end positioned between the first cutting chamber and the discharge opening. A discharge transition area is positioned between the first cutting chamber and the discharge opening.