How Andy Sonnanstine's ERA Compares to Similar Players

Andy Sonnanstine posted a career ERA of 5.26, well above the starting pitcher average of 3.87 — production that significantly underperformed against league baselines. His strongest ERA season came in 2008, posting 4.38, near the starting pitcher average of 4.42 that year. The highest point came in 2009 at 6.77, well above the starting pitcher average of 4.35 that year. The ERA trended upward through the final seasons. The figure moved from 6.77 in 2009 to 4.44 in 2010 and 5.55 in 2011. The upward arc continued through his final campaign. Some season-to-season variance runs through the career line, but the career average remained well below league norms across 5 seasons.

Andy Sonnanstine Lifetime ERA and Similar Stats

Stats similar to ERA for Andy Sonnanstine
Andy Sonnanstine
ERA
Andy Sonnanstine
Component ERA
Andy Sonnanstine
Defense Independent ERA
Career5.264.744.5
Season Avg.5.264.744.5
162 Game Avg.5.264.744.5
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Andy Sonnanstine ERA Per Season

Andy Sonnanstine'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.
Andy Sonnanstine ERA per season line chart

Andy Sonnanstine ERA by Team

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

Andy Sonnanstine ERA Year-Over-Year Change

A waterfall chart tracking how Andy Sonnanstine'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.
Andy Sonnanstine ERA year-over-year waterfall chart

Andy Sonnanstine ERA Distribution vs. Comparable Players

Each box summarizes Andy Sonnanstine'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.
Andy Sonnanstine ERA distribution box chart versus comparable players

Andy Sonnanstine ERA — Season-by-Season Breakdown

Every season of Andy Sonnanstine'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.
Andy Sonnanstine ERA season-by-season breakdown table