Jairo Diaz vs. Dave Haas — Career Comparison

Dave Haas built a career as a starting pitcher and Jairo Diaz as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dave Haas posted stronger surface numbers — ERA 4.84 and WHIP 1.654 compared to 4.86 and 1.556 for Jairo Diaz. By the career numbers, Dave Haas had the better of this cross-role comparison — though era context would sharpen the verdict.