Karasev was the starting point guard of the senior men's Russian national basketball team, between 1993 and 2003. With Russia's senior national team, Karasev won two EuroBasket medals, the silver medal at the EuroBasket 1993 and the bronze medal at the EuroBasket 1997. He also won two FIBA World Cup silver medals, one at the 1994 FIBA World Championship, and one at the 1998 FIBA World Championship.