Mezue ahịrịokwu na-esonụ: Na 1964 Tokyo Olympics, McIntosh bụ nke atọ na 80m hurdles heat na 10.8 sec. Ọ bụ onye nke ise na ọkara ikpeazu na 10.9 sekọnd na nke 10 kachasị ọsọ n'ozuzu.
Na 100 yards, McIntosh bụ onye nke anọ na okpomọkụ ya na nke isii na nkeji iri na ise. Ihe omume a adịkwaghị.