Over the next few years, Mutola dominated the 800 m event, winning the 800 m title at the 1993 and 1995 World Indoor Championships and the 1993 World Championships. At the latter event, held in Stuttgart, she won by over two seconds, the biggest ever winning margin in an international women's 800 m final. A favourite for the world outdoor title in 1995 as well, she was disqualified in her semi-final for stepping outside of her lane. Some consolation came at the Memorial Van Damme meeting in Brussels a few weeks after the World Championships, when she broke the world record for 1000 m with a time of 2:29.34, becoming the first woman ever to run the distance in less than two and a half minutes. She also went on to break the world indoor record for 1000 m. She also went undefeated (3-0) vs that years World Champion Ana Quirot, including crushing Quirot at the season ending Grand Prix final where she finished 1st to Quirot's 5th.