 Peralta signed with the Anaheim Angels as a minor league free agent on February 25, 1999.The Angels converted him to a pitcher and he was 2-3 with 12 saves and a 2.50 ERA for the Angels affiliate in the DSL.He moved to the U.S. in 2000 to play for the Butte Copper Kings in the Pioneer Baseball League and the Boise Hawks of the Northwest League.