Dan Jennings vs. Joe Keener — Career Comparison

Joe Keener built a career as a starting pitcher and Dan Jennings as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dan Jennings posted stronger surface numbers — ERA 3.1 and WHIP 1.486 compared to 10.38 and 3.462 for Joe Keener. By the career numbers, Dan Jennings had the better of this cross-role comparison — though era context would sharpen the verdict.