Quality Starts is a statistic in baseball assigned to pitchers who start a game and pitches at least six innings without allowing more than three earned runs.
More about Quality Starts Leaders
Pitching quality starts leaders are pitchers who make the most starts in which they pitch at least six or more innings and do not allow more than three earned runs. This is an imprecise measure, as a pitcher can be credited with a quality start by either throwing nine shutout innings or by pitching just six innings and allowing six runs (three earned). Nevertheless, over the course of the season the “cheap” quality starts and “hard earned” quality starts tend to even out and is a useful back-of-the-envelope metric to determine what pitchers kept their teams in the game the longest. Whether a pitcher was credited with a win, loss, or no decision does not impact whether they were credited with a quality start.