Tracey - who has competed in five Paralympic Games from Barcelona 1992 through to Beijing 2008 - has racked up an impressive six Paralympic medals. She had cancer of the retina aged four which resulted in her losing her sight.

At her most recent international outing, at the IPC European Championships in Holland in June 2011, she won gold in the 100m and 200m in the T11 finals. Amazingly at the age of 42, she ran her fastest time since Beijing, four years ago.

The IPC Athletics World Championships in New Zealand in 2011 brought more success when she won silver in the 400m, bronze in the 200m and finished fourth in the 100m.

Astonishingly London 2012 will be Tracey's sixth Paralympic Games. This remarkable woman is achieving amazing times and still believes she can go quicker.

In her career, she has racked up six Paralympic medals:

2000 Paralympics: silver (800m), bronzes (200m & 400m)
1992 Paralympics: silvers (200m & 400m), bronze (100m)