How Mac MacArthur's Runs Allowed Per 9 Innings Compares to Similar Players

Mac MacArthur posted a career Runs Allowed Per 9 Innings of 8.48, well above the relief pitcher average of 4.54 — production that significantly underperformed against league baselines. Across 1 season, the Runs Allowed Per 9 Innings arc showed a disappointing start, with limited data making longer-term conclusions premature. With 1 season of data, the Runs Allowed Per 9 Innings arc was below league norms — too limited for reliable trend analysis. Some season-to-season variance runs through the career line, but the career average remained well below league norms across 1 season.

Mac MacArthur Lifetime Runs Allowed Per 9 Innings

Stats similar to Runs Allowed Per 9 Innings for Mac MacArthur
Mac MacArthur
Runs Allowed Per 9 Innings
Career8.48
Season Avg.8.48
162 Game Avg.8.48
More InfoSee More

Mac MacArthur Runs Allowed Per 9 Innings Per Season

Mac MacArthur's Runs Allowed Per 9 Innings for each season of his MLB career, plotted against that year's league average. Switch between comparisons — American Association, Hall of Fame, RP, , or players born in the same country — to see how he stacked up year by year.
Mac MacArthur Runs Allowed Per 9 Innings per season line chart

Mac MacArthur Runs Allowed Per 9 Innings by Team

Mac MacArthur's career Runs Allowed Per 9 Innings totals broken down by each team he played for, ordered by when he first joined that team.
Mac MacArthur career Runs Allowed Per 9 Innings by team bar chart

Mac MacArthur Runs Allowed Per 9 Innings Year-Over-Year Change

A waterfall chart tracking how Mac MacArthur's career 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.
Mac MacArthur Runs Allowed Per 9 Innings year-over-year waterfall chart

Mac MacArthur Runs Allowed Per 9 Innings Distribution vs. Comparable Players

Each box summarizes Mac MacArthur's seasonal 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.
Mac MacArthur Runs Allowed Per 9 Innings distribution box chart versus comparable players

Mac MacArthur Runs Allowed Per 9 Innings — Season-by-Season Breakdown

Every season of Mac MacArthur's MLB career with 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.
Mac MacArthur Runs Allowed Per 9 Innings season-by-season breakdown table