In basketball, a double-double is a single-game performance in which a player accumulates ten or more in two of the following five statistical categories: points, rebounds, assists, steals, and blocked shots. The first "double" in the term refers to the two (double) categories and the second "double" refers to accumulating ten or more in that category. Similarly, a player records a triple-double, quadruple-double, and quintuple-double when accumulating ten or more in three, four, or all five of the statistical categories, respectively. While double-doubles and triple-doubles occur regularly each NBA season, only four quadruple-doubles have ever officially been recorded in the NBA, and no quintuple-double has ever been recorded in a professional basketball game. A similar term, the five-by-five, is the accumulation of at least five in all five statistical categories. It is rarely done.

Timothy Theodore Duncan is an American former professional basketball player. He spent his entire 19-year career with the San Antonio Spurs in the National Basketball Association (NBA). Nicknamed "the Big Fundamental", he is widely regarded as the greatest power forward of all time and one of the greatest players in NBA history, and was a central contributor to the franchise's success during the 2000s and 2010s. He was inducted into the Naismith Memorial Basketball Hall of Fame in 2020 and named to the NBA 75th Anniversary Team in 2021.