in 1932 kusociński was working as a gardener in a park in warsaw. just about a month before the los angeles olympics, kusociński ran a new world record in the 3000 m (8:18.8) and later that year, he set a new unofficial world record in running 4 miles in a time of 19:02.6. at the olympics, kusociński won a close battle against the finns volmari iso-hollo and lasse virtanen in the 10 000 m, with a world season's best time of 30:11.4.