In his professional baseball career, Mercer has hit 66 balls over the fence while knocking in 308 runs. For his time in baseball, he came to bat 3,416 times and has delivered with a base knock 796 times. He has accumulated a slugging percentage of .016 and he has totaled 1,197 bases. He has struck out 589 times and earned a walk on 246 at-bats, which has contributed to a .315 on-base percentage. Mercer has hit .256 for his career in baseball in addition to 330 scored runs and an OPS of .331.
