Martini was drafted 162nd overall by Edmonton in 1989 from Michigan Tech. He turned pro in 1992 and split the 1992–93 season in the American Hockey League with the Cape Breton Oilers and the East Coast Hockey League with the Wheeling Thunderbirds. In the 1993–94 NHL season, Martini played two games for Edmonton, it would be the only NHL experience he would receive. After spending the next few seasons bouncing around the minor leagues, Martini moved to Europe in 1996, joining Klagenfurt of the Austrian Hockey League where he spent two seasons. In 1998, he moved to the Deutsche Eishockey Liga in Germany with the Hannover Scorpions before returning to Klagenfurt. He spent his final two seasons in Italy and retired in 2002.