During the 2000s, she gradually shifted to the
800 metres distance as her specialist event. In 2002, she won her first senior British title in the indoor 800 m and a year later took gold in the indoor 400 m. Apart from relays at several major events, Meadows represented Great Britain at the
2001 European U23 Championships (400 m),
2002 European Indoor Championships (800 m), home
2003 World Indoor Championships (400 m), and
2003 European U23 Championships (400 m). On 19 August, she took the bronze medal in the World Championship 800 m final in a new lifetime best of
1.57.93, becoming the third-fastest British women of all time at the event.
2010: World Indoor Championship & European Championship silver medals Meadows started the season in great form and on 20 February broke the 7-year British indoor 800 m record, formerly held by Kelly Holmes, with a time of 1:59:11 in Birmingham. She went on to improve her record at the
World Indoor Championships in
Doha, Qatar on 14 March, where she was awarded the captaincy of the Great Britain team, and claimed the silver medal in
1:58.43.
2011: European indoor champion & Diamond League winner At the
Paris European Indoor Championships, she earned two medals, securing the silver medal for the
800 m event and a silver as part of British
women's 4 × 400 metres relay. She was a favourite for the title at the
European Indoor Championships in
Prague but days before the event contracted a heavy cold/flu and was not at her best. She ran the heats and semi-final but was not well enough to contest the final. Meadows described this as a real low of her career after battling back from injury and drugs cheats for a cold/flu to take away her victory this time. She competed throughout the rest of 2015 but was very disheartened by what she had faced the past few years. She was eliminated in the
semi-finals at the World Championships
Beijing 2015. ==Non-competitive career==