How Leo Hafford's ERA Compares to Similar Players

Leo Hafford posted a career ERA of .950, well below the starting pitcher average of 3.87 — a mark that ranked among the best of his era. Across 1 season, the ERA arc showed a promising start, with limited data making longer-term conclusions premature. With 1 season of data, the ERA arc was above league norms — too limited for reliable trend analysis. Some season-to-season variance runs through the career line, but the career average remained well above league norms across 1 season.

Leo Hafford Lifetime ERA and Similar Stats

Stats similar to ERA for Leo Hafford
Leo Hafford
ERA
Leo Hafford
Component ERA
Leo Hafford
Defense Independent ERA
Career0.952.584.37
Season Avg.0.952.584.37
162 Game Avg.0.952.584.37
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Leo Hafford ERA Per Season

Leo Hafford's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Leo Hafford ERA per season line chart

Leo Hafford ERA by Team

Leo Hafford's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Leo Hafford career ERA by team bar chart

Leo Hafford ERA Year-Over-Year Change

A waterfall chart tracking how Leo Hafford's career ERA shifted from season to season. Each bar represents the change added to his career total that year, making peak and decline phases easy to spot.
Leo Hafford ERA year-over-year waterfall chart

Leo Hafford ERA Distribution vs. Comparable Players

Each box summarizes Leo Hafford's seasonal ERA alongside a selected comparison group across all seasons he played. The box covers the middle 50% of seasons, the center line is the median, and the whiskers extend to the min and max. A tighter box means more consistency; a higher median means more output. Use the selector to switch comparison groups.
Leo Hafford ERA distribution box chart versus comparable players

Leo Hafford ERA — Season-by-Season Breakdown

Every season of Leo Hafford's MLB career with ERA alongside league, Hall of Fame, positional, birth region, and country-of-birth averages for that year. Career totals include sum, average, min, max, and median.

Note: A dash (—) means no qualifying players existed in that comparison group for that season. Most commonly this happens for the Hall of Fame group.
Leo Hafford ERA season-by-season breakdown table