After that, Greenstock played only two more first-class matches, for Free Foresters against Oxford in 1928, and for H. D. G. Leveson-Gower's XI against Cambridge University the following year.
Following his earlier performances, Greenstock only played a couple of high-profile games, for Free Foresters against Oxford in 1928, and for H. D. G. Leveson-Gower's XI against Cambridge University the following year.