Foster has tallied a walk 528 times while striking out on 316 occasions. His on-base percentage is .329 and he has earned a career OPS of .463. He has a total of 732 runs in addition to having 451 runs batted in. He has gone deep 6 times, with 1,841 total bases and a .134 slugging %. For the 5,652 at-bats in his baseball career, Foster has a batting average of .264 in addition to 1,490 base hits.
