For the 5,252 at-bats in his professional career, Flack has accrued an average at the plate of .278 with 1,461 base hits. His on-base rate is .342 and he holds a lifetime OPS of .451. He has amassed 783 runs in addition to having 391 runs batted in. Flack has drawn a walk 474 times while fanning on 253 tries. He has gone deep 35 times, with 1,922 total bases and also a .110 slugging %.
