USPSA classification is a single number — your percentage — that measures your skill against a fixed national benchmark, independent of who else showed up to your local match. Here is exactly how that number is built.
Every stage you shoot is scored as a hit factor: your total points divided by your time. Faster and more accurate always scores higher. On most stages, hit factor only determines your placement. On a small set of standardized stages — classifiers — it also becomes part of your national classification.
Each classifier has an official High Hit Factor (HHF) per division — the hit factor USPSA has set as the 100% benchmark. Your percentage on that run is simply:
percentage = (your hit factor ÷ the classifier's HHF) × 100
Beat the HHF and you can score above 100%. The HHF is set per division, so the same run scores a different percentage in Open than it does in Production.
USPSA does not average your whole shooting career. For each division, it takes your most recent 8 classifier scores and averages the best 6 of them. While you're still earning your very first classification (fewer than 7 scores on record), it's best 4 of your most recent 6 instead. Either way, a couple of off days get dropped, and your class tracks recent form rather than a lifetime peak — see the exact percentage bands in USPSA classes.
USPSA flags and excludes certain scores from the average — most commonly a classifier shot while your membership had lapsed, or a duplicate attempt on the same day. The full list of exclusion rules is in USPSA classification rules.
Each classifier score becomes a percentage (your hit factor divided by that classifier's High Hit Factor). USPSA averages your best 6 of your most recent 8 scores per division to set your class.
The HHF is the hit factor USPSA has set as the 100% benchmark for a classifier in a division. Your percentage on that run is your hit factor divided by the HHF.
A classifier score itself doesn't have a rolling expiration built into the average — it simply ages out once you have 8 more recent scores. Practically, an inactive membership or long gap can leave your class stale relative to your current skill.
No. Match placement ranks you against whoever showed up that day. Classification measures you against a fixed national benchmark, independent of the field.
Yes — USPSA flags certain scores (like ones shot on an expired membership, or duplicates) so they don't count. See the classification rules for the full list.
MatchChaser computes this exact system automatically — best 6 of 8, HHF percentages, flag exclusions — and updates the moment you log a score. Free.
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