In the 2025 MLB season, the Wild Card round consists of four best-of-three series games in total, two series in the American League and two series in the National League. Each series is a best-of-three format, so the maximum number of games that can be played in the Wild Card round is 12 games (if every series goes to a full three games). The higher-seeded teams host all the games in their respective series. Thus, there are 4 Wild Card matchups, each potentially lasting up to 3 games, making the answer: 4 series with up to 12 games total in Wild Card round.
