Dvariskyte competed for Lithuania in the women's 200 m breaststroke at the 2008 Summer Olympics in Beijing. Leading up to the Games, she fired off her own lifetime best in 2:33.35 to clear an insurmountable FINA B-cut by just 0.07 of a second at the European Championships in Eindhoven, Netherlands. Dvariskyte topped the field in heat one by approximately five seconds ahead of Finland's Noora Laukkanen and Brazil's Tatiane Sakemi in 2:33.32, slicing 0.03 seconds off her lifetime best from the Europeans five months earlier. Dvariskyte failed to advance into the semifinals, as she placed thirty-fifth overall out of forty-one swimmers in the prelims.