How Jack Aker's WHIP Compares to Similar Players

Jack Aker posted a career WHIP of 1.28, near the relief pitcher average of 1.38 — a profile that tracked closely with league norms. His strongest WHIP season came in 1966, posting .965, well below the relief pitcher average of 1.28 that year. The highest point came in 1964 at 1.65, well above the relief pitcher average of 1.31 that year. The WHIP trended upward through the final seasons. The figure moved from 1.32 in 1972 to 1.56 in 1973 and 1.26 in 1974. The upward arc continued through his final campaign. Some season-to-season variance runs through the career line, but the career average tracked near league norms across 11 seasons.

Jack Aker Lifetime WHIP

Stats similar to WHIP for Jack Aker
Jack Aker
WHIP
Career1.278
Season Avg.1.278
162 Game Avg.1.278
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Jack Aker WHIP Per Season

Jack Aker's WHIP 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.
Jack Aker WHIP per season line chart

Jack Aker WHIP by Team

Jack Aker's career WHIP totals broken down by each team he played for, ordered by when he first joined that team.
Jack Aker career WHIP by team bar chart

Jack Aker WHIP Year-Over-Year Change

A waterfall chart tracking how Jack Aker'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.
Jack Aker WHIP year-over-year waterfall chart

Jack Aker WHIP Distribution vs. Comparable Players

Each box summarizes Jack Aker'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.
Jack Aker WHIP distribution box chart versus comparable players

Jack Aker WHIP — Season-by-Season Breakdown

Every season of Jack Aker'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.
Jack Aker WHIP season-by-season breakdown table