Tracks across the country will hold a moment of silence Feb. 18 in memory of the late jockey Avery Whisman. The Permanently Disabled Jockeys Fund, in coordination with racetracks across the country, is leading the initiative in an effort to shed light on mental health awareness and the challenges jockeys face. Jockeys at all participating tracks will wear black armbands in tribute to Whisman, who died suddenly Jan. 11 at the age of 23 following a prolonged struggle with the physical and mental demands placed on riders. The 1/ST properties:...