In 2000, Ibañez again split the season between the Mariners and the Triple-A Rainiers. With the Rainiers, Ibañez batted .250 with 10 hits, 4 doubles, and 6 home runs in 10 games. Ibañez appeared in 92 regular season games with the Mariners in 2000. He batted .229 with 32 hits, 8 doubles, 2 home runs, and 15 RBIs. Ibañez appeared in three games in the 2000 American League Division Series and in 8 at-bats got 3 hits. During the next round of the playoffs, the 2000 American League Championship Series, Ibañez appeared in six games and went hitless. He became a free agent after the season.