Career
Her personal best for the event is 52.40 seconds. Going into the outdoor season, she was chosen for the relay at the 2009 European Team Championships and helped Great Britain to the bronze medal. She once again represented Great Britain at the 2009 World Championships in Athletics in the relay.
A team of Lee McConnell, Christine Ohuruogu, Barr and Nicola Sanders came fourth in the final.
The following indoor season, Barr ran in the relay at the 2010 IAAF World Indoor Championships and Britain again finished fourth, just beaten to the bronze by the Czechoslovakian Republic. The team completed the final in a time of 3:24.32 minutes.
Despite this, Barr lost her United Kingdom Athletics Podium Scheme funding that year. However in August 2011 she agreed a sponsorship deal with Worldpay.
During the 2011 season she suffered a rib injury which caused difficulties with breathing, and as a result she did not finish the 400m at the United Kingdom trials in 2011, having to abandon the race with 100m to go.
Barr was subsequently not selected for the British squad for the 2011 World Championships in Athletics in Daegu.