Western Horse Refresher Course

My horse, Chigger, has not been ridden in 2 years for several different reasons. I am wanting to get back to riding him, but I think he needs a refresher course. I am wanting to use him for one of three things: roping, barrel racing, or trail obstacle/general showing. I don't know where to start working with him. He is a 13 year old Paint that is already broke to ride. The last time he was ridden he started having a little bucking fit. He hadn't been ridden for about 2 months before that and he was being ridden in 6 inches of sand. I don't know what exactly made him buck, but I don't really want him doing it again. As far as refresher course activities to do with him go, I am completely clueless. I don't have a round pen, so that option is out of question.

Any suggestions will be greatly appreciated.

I would send him out for the first 30 without a round pen. Finding out the reason for the bucking is one thing...finding out the reason for the bucking while eating dirt in the middle of a trail is another.

I would start slow. Basic schooling and trail riding. A good roping horse needs professional training IMO. Local barrel racing can be done by just about every horse. Get good w/t/c under him with good stops and light turns and go from there.

Round Pen reasoning can be done without a round pen. The only downside is that it might take a little longer w/o the round pen, but it can be successful.