 From 1985 to 1988, Kreizberg was director of the orchestra at Mannes, and also taught conducting to a select number of students.During this period, he also conducted concerts of the New York City Symphony.In 1986, Kreizberg won first prize in the American Symphony Orchestra's Stokowski Conducting Competition, which resulted in a 2 March 1986 concert at Carnegie Hall, subsequently repeated the following week (9 March) at Newark Symphony Hall.