How David Robertson's Hits Allowed Per 9 Innings Compares to Similar Players
David Robertson has posted a career Hits Allowed Per 9 Innings of 6.78, well below the relief pitcher average of 8.78 — a mark that ranks among the best of his generation. His strongest Hits Allowed Per 9 Innings season came in 2017, posting 4.61, well below the relief pitcher average of 8.34 that year. The highest point came in 2019 at 10.8, well above the relief pitcher average of 8.39 that year. Production has slipped over the most recent seasons. The figure has moved from 7.3 in 2023 to 6.63 in 2024 and 9.17 in 2025. The slide has continued into 2025, with the production level an open question entering 2026. Some season-to-season variance runs through the career line, but the career average has remained well above league norms across 17 seasons.
David Robertson Lifetime Hits Allowed Per 9 Innings
Stats similar to Hits Allowed Per 9 Innings for David Robertson
| David Robertson
Hits Allowed Per 9 Innings |
|---|
| Career | 6.78 |
| Season Avg. | 6.78 |
| 162 Game Avg. | 6.78 |
| More Info | See More |
David Robertson Hits Allowed Per 9 Innings Per Season
David Robertson's Hits Allowed Per 9 Innings 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.
David Robertson Hits Allowed Per 9 Innings by Team
David Robertson's career Hits Allowed Per 9 Innings totals broken down by each team he played for, ordered by when he first joined that team.
David Robertson Hits Allowed Per 9 Innings Year-Over-Year Change
A waterfall chart tracking how David Robertson's career Hits 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.
David Robertson Hits Allowed Per 9 Innings Distribution vs. Comparable Players
Each box summarizes David Robertson's seasonal Hits 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.
David Robertson Hits Allowed Per 9 Innings — Season-by-Season Breakdown
Every season of David Robertson's MLB career with Hits 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.
