In fantasy football, GB stands for "games back". It is a statistic that shows how far behind a team is from the top position in the standings. For example, if a team has a record of 6-4 and the top team in the league has a record of 8-2, then the team with a 6-4 record is two games back (2 GB) from the top position in the standings. The term "games behind" or "games back" is commonly used in North American sports to reflect the gap between a leading team and another team in a sports league.