“Being a single dad of three girls is challenging,” said Paul Rose, a tennis coach. But he must be doing something right: All of his daughters received either tennis or academic scholarships to college. Born in Jamaica, Mr. Rose, 56, played tennis in his native country on the professional circuit and taught the sport there before arriving in the United States in 1987. In 1989, the Midtown Tennis Club in Chelsea hired him as a tennis pro and he has mostly worked there ever since. Mr. Rose lives in Crown Heights, Brooklyn, with his daughters: Malika, 25, who graduated from Oklahoma State University in 2013 and was ranked 850th in the country before an injury sidelined her last year; Nia, 20, who attends the University of Oregon on a tennis scholarship, and Kiara, 18, who will start Tufts University on a full academic scholarship in the fall.