How John Foster's WHIP Compares to Similar Players
John Foster posted a career WHIP of 1.58, above the relief pitcher average of 1.38 — a level that fell short of typical league production. Across 3 seasons, the WHIP arc showed a disappointing start, with limited data making longer-term conclusions premature. With 3 seasons of data, the WHIP 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 fell below league norms across 3 seasons.
John Foster Lifetime WHIP
Stats similar to WHIP for John Foster
| John Foster
WHIP |
|---|
| Career | 1.582 |
| Season Avg. | 1.582 |
| 162 Game Avg. | 1.582 |
| More Info | See More |
John Foster WHIP Per Season
John Foster's WHIP for each season of his MLB career, plotted against that year's league average. Switch between comparisons — National League, Hall of Fame, RP, North America, or players born in the same country — to see how he stacked up year by year.
John Foster WHIP by Team
John Foster's career WHIP totals broken down by each team he played for, ordered by when he first joined that team.
John Foster WHIP Year-Over-Year Change
A waterfall chart tracking how John Foster's career WHIP 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.
John Foster WHIP Distribution vs. Comparable Players
Each box summarizes John Foster's seasonal WHIP 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.
John Foster WHIP — Season-by-Season Breakdown
Every season of John Foster's MLB career with WHIP 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.
