Make sure you are doing the exercises that you have been given and that you are doing quality movement when you do them, avoid trick movts etc. Your physio should be able to help you.

You may need to increase your physio sessions at some point, depending on how much they can do with you.

Make sure that you are keeping your CV fitness up, static bike, xtrainer (with or without arms...depending on how you are doing),step ups etc... use your imagination but don't put your wrist at risk.

As soon asyou are ale (seek advice) start arm ergometer for upper body endurane.

If your fracture heals well it is possible. Make sure your diet complements your healing process. You may need to usea light weight Bioskin style support to race in.

Good luck.