Ma'anar ƙamus na "matsakaicin filin wasa" shine rabon nasarar wasan tsaron da ɗan wasa ko ƙungiya suka yi a cikin wasa ko sama da kakar wasa zuwa jimillar damar tsaro, wanda aka bayyana a matsayin adadi na ƙima ko kashi. A cikin wasan ƙwallon baseball, alal misali, ana ƙididdige matsakaicin matsakaicin ɗan wasa ta hanyar raba jimillar adadin fita da taimakon da suka yi ta yawan adadin damar da suke da shi don yin wasa.