Reizniece-Ozola won the Latvian Chess Championship for women in 1998, 1999, 2000, and 2001. In 1998 and 1999, she won the Girls Under 18 section of the European Youth Championships. In 2000, Reizniece-Ozola competed in the Women's World Chess Championship, held in New Delhi, India; she was eliminated in the first round after losing to Nataša Bojković.