Radcliffe has generally been acclaimed to be the best third baseman in Negro American League history. A 6′ 200-lb righthanded hitter, he was a vital cog in the Chicago American Giants‘ 1932 Negro Southern League pennant (batting .283) and in their disputed 1933 and 1934 NNL claims. From 1933 to 1936 he batted .330. His manager, Dave Malarcher (himself a famed American Giant third baseman), said, “Radcliffe, in my estimation, became one of the truly great third basemen in baseball history; a fast man, a powerful hitter and one who possessed the mind which enabled him to fit into [our system].”
Radcliffe batted .325 during the 1945 NAL season. When he made his 11th and final East-West all-star game appearance in 1946, he had played in more of them than any other player. His 44 at-bats and 15 hits (.341) were East-West game highs, and he scored seven runs and drove in ten. His older brother Ted also starred in the Negro Leagues.