I have an ex racer who is 16.3hh and 9 y/o. He will jump 1 meter on the lunge but when it comes to me riding him over something as little as 3 trotting poles pushed together, he will refuse or catleap over it. Please help i really need some advice on what i can do.
Ex race horses do tend to have micro-fractures in their limbs due to their high training regime, they generally should avoid jumping until a clinical exam can rule out any problems .
You need to retrain him to jump small jumps with you on him first and build up slowly, the cross bar jumps are the best to use. It may be worth going to your pony club and getting them to watch so they can see what's going wrong .