Nine-year-old Cody McCasland has more than 20 artificial legs so he can take part in all sports and beat his able-bodied friends - despite having his own amputated.
The determined boy, who dreams of winning a Paralympic gold, has running, walking and sitting down legs so he can get around - and win at every event.
Cody was born without any tibia or knee bones, and had to have the bottom half of his legs amputated as a toddler.
Sports star: The young athlete regularly beats able-bodied opponents at a variety of sports. He has vowed to win at the Paralympics. He said: 'I definitely will take part one day and win a gold medal.'
But he enjoys a busy schedule of running, swimming, football, ice hockey and other sports and wants to be be a doctor when he is older.
He is one of the fastest nine-year-olds around after having artificial running legs fitted like South African Olympic sprinter Oscar Pistorius.
His mother Tina McCasland, 38, said: 'Cody has different legs for different occasions. He uses his walking legs every day, for going to school, his stubby legs for sitting down and his running legs for sprints.
'He is really fast and is even winning competitions against children a lot older than him.
'We've always said whatever Cody wants to do, we will do our best to let him have that opportunity. He won't let his disability hold him back.'
Inspirational: Double-amputee Cody McCasland, nine, with all the legs he has had over the years. The boy likes to show his collection off to inspire others with disabilities
Determined: Cody (centre) regularly competes against - and beats - able-bodied athletes in the swimming pool
Cody's selection of legs and a wheelchair from a local hospital in Colleyville, Texas, allow him to take part in a variety of sports.
But he needs to go to the hospital for four hours every week for up to eight weeks while his legs are being made so doctors can make sure the measurements are spot on.
Cody's main love is swimming - where he doesn't use any false legs - and has won gold and silver medals in competitions for children with a range of abilities.
Tina said: 'He loves swimming and has won a lot of competitions. He practices three times a week at an after school club with able bodied children
'They are faster than him as they can use their legs but he likes to push himself to go faster against them.
'It's good practice for him and we always check his time so help him check if he is beating his personal best.'
Blade runner: Cody, here with his mother Tina McCasland, 28, has these legs for running. They are similar to the ones used by Paralympic sprinting world record holder Oscar Postorius
Speedy: South African Oscar Pistorius who is almost as quick as able-bodied runners performing here in the Paralympics in Beijing. Cody one day hopes to emulate his success
Tina, a social worker, hopes to bring Cody to London in 2012 to watch the Paralympics which he hopes to compete in.
The ambitious boy said: 'I definitely will take part one day and win a gold medal.'
Cody suffers from a rare condition called Sacral Agenesis, a spinal condition, which means his legs were shortened and bent the wrong way.
Tina and Cody's father Mike, who also have a daughter Callie, four, were warned he might need both lower legs amputated to give him the chance of walking with prosthetic legs.
Tina said: 'The right leg was missing a tibia and knee cap.
'The fibula was not enough to support Cody's leg and without a knee, he could not bend it.
'His legs just curved round to the side when he was sitting and it just kind of got in his way.
'His left leg, looked more normal, but the knee did not bend. We were told there may be a chance of surgery to fix that leg but there was no guarantee of success.'
Cody's parents made the brave decision to allow him to undergo a double amputation at 15 months old.
But when he was fitted for his first prosthetic legs two months later, Cody shocked his parents and doctors by managing to stand and walk on them the same day.
Tina said: 'Hardly anyone takes to prosthetics so well. It was amazing - it was as if Cody had just been waiting for the chance to have new legs so he could walk. He was so pleased with himself.'
Now Cody has many pairs of legs, all provided for him by the Texas Scottish Rite Hospital for Children, a specialist limb centre, including ones called stubbies for sitting and playing, walking legs and blades for running.
'They are very expensive and Cody seems to outgrow them all the time,' said Tina.
'We're very lucky that we have this specialist centre which provides the running legs, as health insurance doesn't do that. The legs are not available to people in many areas.'
The courageous youngster said: 'I'm a non-stop runner and no-one can keep up with me.
'I have many kinds of legs which I use for different things. I have running legs for when I'm running, walking legs for going to school, and stubbies for playing.'
Fast: The nine-year-old has a racing wheelchair which he uses to compete in track events in Colleyville, Texas
Boy wonder: Track competitor Cody, here in his running legs, hopes he can be an inspiration to other people with disabilities