Sean O'Sullivan vs. Bernie Walter — Career Comparison

Sean O'Sullivan built a career as a starting pitcher and Bernie Walter as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bernie Walter posted stronger surface numbers — ERA 0 and WHIP 0.000 compared to 6.01 and 1.616 for Sean O'Sullivan. By the career numbers, Bernie Walter had the better of this cross-role comparison — though era context would sharpen the verdict.