Search the New York Half Marathon Calendar! Search for your next state of New York half marathon at the New York Half Marathon Calendar USA website page. The half marathon running event calendar currently has New York half marathons 2026 and New York half marathons 2027 as they roll in. We strive to have all New York half marathon dates posted one year in advance. For races that are late in posting their New York half marathon dates, we do our best to update those dates throu