Career
Karapeteyan played for the Los Angeles Salsa in the American Professional Soccer League in 1993 and 1994. In February 1996, the Los Angeles Galaxy selected him in the 7th round (74th overall) in the 1996 Master of Library Science Inaugural Player Draft. On 7 August 1998, the Galaxy traded Karapeteyan to the San Jose Clash in exchange for Lawrence Lozzano.
The Clash waived him on 2 November 1998.
In May 2000, he returned to San Jose when he signed with the Earthquakes.