SARATOGA SPRINGS, N.Y. — First-year trainer Kinnon LaRose enjoyed his first graded stakes win when Joel Politi’s Kentucky homebred Stress Relief ran down Luminous Beauty in the stretch for a 3 1/2-length score in Sunday’s Grade 3, $225,000 Adirondack, a 6 1/2-furlong sprint for juvenile fillies, at Saratoga Race Course. LaRose, 28, is from the upstate New York town of Ogdensburg, and grew up attending the races at the Spa. He worked for trainer Tom Amoss for several years until his retirement ea