Jacoby captained the North American and US teams that won the Bermuda Bowl in both 1970 and 1971. During a long playing career, he won tournaments with many partners including his son and co-author, James Jacoby (1933–1991), as well as his wife of more than 50 years, Mary Zita Jacoby. Terminally ill, his final tournament victory came in a major event at the ACBL North American Bridge Championships late in 1983, as a member of the team-of four champions for the Reisinger trophy with Edgar Kaplan, Norman Kay, Bill Root and Richard Pavlicek. In the same year, he was named Personality of the Year by the international bridge writers (Charles H. Goren Award). He died at his Dallas home of cancer on June 27, 1984.