CHICAGO - Arlington's Mid-America Triple, three summer stakes for 3-year-old grass horses, had an identity crisis even before Colonial Downs introduced one then another $1 million race in the same division. With $2 million in prize money up for grabs this year in Virginia, the Mid-America Triple, until the Secretariat Stakes, has become an also-ran, one reason why no grass horses of scintillating promise were entered in Saturday's $40,000 Awad Stakes, Arlington's prep for the Arlington Classic, the first leg of the summer series.