Fleisher played in the Israeli Basketball Premier League for Hapoel Tel Aviv, Hapoel Holon, Hapoel Galil Elyon, Ramat Hasharon, Maccabi Haifa, Ramat Gan, Bnei Herzelia, and Maccabi Netanya. He played for the Israeli national basketball team in the 1987 European Championship for Men, 1988 European Olympic Qualifying Tournament for Men, 1992 European Olympic Qualifying Tournament for Men, 1993 European Championship for Men, 1995 European Championship for Men, 1997 European Championship for Men, and 1999 European Championship for Men.