Resting the starters is the substitution of regular players on a sports team with backup players, and it occurs when a team has clinched at least a playoff berth, often its division, and in many cases, home advantage, and no further regular season losses would hurt the team in the standings (or, inversely, if the team has been eliminated from playoff contention and has nothing further to gain by playing). This enables the team to avoid risking injury to the starters, and to give real life playing practice to backup players.[1]
Veteran starters are also frequently rested in the final preseason games (or in some cases, the entire preseason schedule) in order to get them ready for the early part of the season and protect them from injury in non-competitive games.[2]
Also, starters are sometimes rested during a game during garbage time when the outcome is mostly certain. While usually garbage time takes place toward the end of the fourth quarter of a game, in games where there is such a vast difference in talent and the winning team very quickly gains a large lead, the starters will be removed from the game early—sometimes well before the end of the first half—and the second- and lower-string players will play the remainder of the contest. As such, the starters play long enough only to gain a significant lead, and giving the reserves extended playing time.