How Mark Leiter's ERA Compares to Similar Players
Mark Leiter posted a career ERA of 4.57, above the starting pitcher average of 3.87 — a level that fell short of typical league production. His strongest ERA season came in 1998, posting 3.55, well below the starting pitcher average of 4.48 that year. The highest point came in 1990 at 6.84, well above the starting pitcher average of 3.89 that year. The ERA trended upward through the final seasons. The figure moved from 3.55 in 1998 to 6.75 in 1999 and 3.75 in 2001. The upward arc continued through his final campaign. Some season-to-season variance runs through the career line, but the career average fell below league norms across 10 seasons.
Mark Leiter Lifetime ERA and Similar Stats
Stats similar to ERA for Mark Leiter
| Mark Leiter
ERA | Mark Leiter
Component ERA | Mark Leiter
Defense Independent ERA |
|---|
| Career | 4.57 | 4.41 | 4.46 |
| Season Avg. | 4.57 | 4.41 | 4.46 |
| 162 Game Avg. | 4.57 | 4.41 | 4.46 |
| More Info | See More | See More | See More |
Mark Leiter ERA Per Season
Mark Leiter's ERA for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, SP, North America, or players born in the same country — to see how he stacked up year by year.
Mark Leiter ERA by Team
Mark Leiter's career ERA totals broken down by each team he played for, ordered by when he first joined that team.
Mark Leiter ERA Year-Over-Year Change
A waterfall chart tracking how Mark Leiter'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.
Mark Leiter ERA Distribution vs. Comparable Players
Each box summarizes Mark Leiter'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.
Mark Leiter ERA — Season-by-Season Breakdown
Every season of Mark Leiter'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.
