Tolerance grade can be Grade 0.5 (Lab Master or AAA), 1 (AA), 2 (A1/A+), or 3 (A). Federal Grade 0.5, Grade AAA, or Laboratory Master Grade products provide the highest degree of accuracy and are used ...

Multiple graded stakes-winner Master Piece looks for a title defense in Saturday’s Grade 2, $300,000 Red Smith, an 11-furlong inner turf test for 3-year-olds and up, at Aqueduct Racetrack. Trained by ...