Over the course of the 1,147 at-bats in his pro career, Duncan has recorded a batting average of .257 with 295 base knocks. He has gone yard 55 times, in addition to having 525 total bases and a -.039 slugging %. Duncan has drawn a free base 160 times while striking out on 316 chances. He has accrued 164 runs in addition to having 175 RBIs. His OBP is .348 and he is the owner of a career OPS of .309.
