Okay, I know this is going to sound really dumb, but I've had luck with it. My horse isn't really hard to catch in the pasture, but sometimes when she gets spooky or something, I'll sort of walk in her direction, but the instant she starts to move away, I turn around and crouch on the ground. It looks so weird to her, she stops right away and stares. Then I start crawling away from her, and kind of mumbling and messing with my hands. I bet it looked really weird to the farm workers! Pretty soon, Jackie was behind me and kept bumping me with her nose! She got so eager to see what I was doing, she practically ran over me when I stopped and got up! That's the only thing you have to watch. Make sure your horse doesn't think it's a game and start messing with you. I also think the running and chasing and not letting them stop works too. I call it join up, but I haven't had to do it to catch Jackie, just to bond with her. Good luck!