Kalambay was an excellent boxer, but due to the speed factor he aint outboxing Roy. The Nunn fight was somewhat of a fluke, so I dunno if Roy stops him, but Jones wins. Either by UD, or stoppage at some point.
Jones wins but Kalambay is fairly underrate for me and is arguably better than anyone RJJ has ever fought, so he is made to work for it IMHO. MTF