How Mark Williamson's Home Runs Allowed Per 9 Innings Compares to Similar Players
Mark Williamson posted a career Home Runs Allowed Per 9 Innings of .810, near the relief pitcher average of .823 — a profile that tracked closely with league norms. His strongest Home Runs Allowed Per 9 Innings season came in 1989, posting .340, well below the relief pitcher average of .676 that year. The highest point came in 1988 at 1.07, well above the relief pitcher average of .727 that year. The Home Runs Allowed Per 9 Innings trended upward through the final seasons. The figure moved from 1.01 in 1991 to .480 in 1992 and .510 in 1993. The upward arc continued through his final campaign. Significant season-to-season variance characterizes the Home Runs Allowed Per 9 Innings profile — ranging from .340 to 1.07 — though the career average tracked near league norms.
Mark Williamson Lifetime Home Runs Allowed Per 9 Innings
Stats similar to Home Runs Allowed Per 9 Innings for Mark Williamson
| Mark Williamson
Home Runs Allowed Per 9 Innings |
|---|
| Career | 0.81 |
| Season Avg. | 0.81 |
| 162 Game Avg. | 0.81 |
| More Info | See More |
Mark Williamson Home Runs Allowed Per 9 Innings Per Season
Mark Williamson's Home Runs Allowed Per 9 Innings for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American League, Hall of Fame, RP, North America, or players born in the same country — to see how he stacked up year by year.
Mark Williamson Home Runs Allowed Per 9 Innings by Team
Mark Williamson's career Home Runs Allowed Per 9 Innings totals broken down by each team he played for, ordered by when he first joined that team.
Mark Williamson Home Runs Allowed Per 9 Innings Year-Over-Year Change
A waterfall chart tracking how Mark Williamson's career Home Runs Allowed Per 9 Innings 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 Williamson Home Runs Allowed Per 9 Innings Distribution vs. Comparable Players
Each box summarizes Mark Williamson's seasonal Home Runs Allowed Per 9 Innings 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 Williamson Home Runs Allowed Per 9 Innings — Season-by-Season Breakdown
Every season of Mark Williamson's MLB career with Home Runs Allowed Per 9 Innings 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.
