Gillian Rolton didn't jump until she was 21, ever. She rode in hack classes and such before then, but her first jump wasn't until she was 21. She went on to be part of the gold medal Olympic team in Atlanta. You might remember her - she was the girl who fell off her horse, broke her collar bone and two ribs, and got back on to finish the cross country day. She competed at the Atlanta Olympics when she was 30 - a mere 9 years after she first started to jump.