The ALDS is a best-of-five series where the wild card team is assigned to play the divisional winner with the best winning percentage in the regular season in one series, and the other two division winners met in the other series with the team with the second best winning percentage, getting home-field. (From 1998 to 2011, if the wild-card team and the division winner with the best record were from the same division, the wild-card team played the division winner with the second-best record, and the remaining two division leaders played each other.) The two series winners move on to the best-of-seven ALCS. According to Nate Silver, the advent of this playoff series, and especially of the wild card, has caused teams to focus more on "getting to the playoffs" rather than "winning the pennant" as the primary goal of the regular season.