Katie Magee has pulled off the best top-level result of her career at Defender Burghley, finishing runner-up at the five-star aboard Treworra behind Gemma Stevens and Chilli Knight.My main aim is just to do my best. I havent done many of these big ones so I still feel very much like Im learning, said Katie, who was contesting her fifth five-star.She has produced the 12-year-old horse herself, giving him time to mature physically before stepping him up the levels before making her five-star debut with him at Badminton in 2025 and finishing 11th.He came out today really well [for the showjumping], really fresh. He had one pole but he tried his heart out and thats all you can ask for, isnt it? added Katie.He was brilliant. He was actually quite fresh and a bit lit up by the crowd, so he was a wee bit tight at times, but he tried his absolute heart out, and thats all any of us can ever ask for, isnt it?I just wanted to ride as good a round as I could, stay on the tighter lines, and just make sure I made his job as good as easy as possible. I knew hed try for me.He loved hearing the crowdThey jumped clear across country with 2.4 time-faults to add.In my opinion hes one of the best cross-country horses. The bigger and bolder the better. I think his face said it all [yesterday]. We left his ears off and he loved hearing the crowd the whole way. Its something Ill remember forever, added Katie.Hes 17.2hh, but he is incredibly polite. He gallops, but he comes back to me. He looks at the flags. Hes so brave and bold, and he really wants to do it for me. Its my lucky job to ride him, which is just brilliant.He just covers the ground, but Im never fighting him really, which is very rare in a horse as brave as he is. Its a lovely feeling.Holidaying with ClaudeMagee has produced the horse himself.He was weak until he was 10, just being big, so its just been about giving him time, so we didnt break him before he got to do what he was born to do, said Katie.Hes almost a little bit too light sometimes. On the flat its been about getting him strong enough to take his neck out and and stay in a slightly more uphill frame. I have to be very light with my hand or hell come a little bit tense.Katie said the same approach applied for their final showjumping round.He was trying his absolutely hardest to keep the poles up. I just had to really keep my hands light so he didnt have any tension because hes got such a good mouth I have to be very light and try not to override and get a bit tight myself, she explained.Somebody very wisely once said to me, when you get to the top level, if you can keep them sound, mentally and physically they just get better and better, so its just managing them and keeping them healthy and happy. And its a privilege to have a horse like that to do that with.He will have a very well deserved holiday now. Hes had an amazing season. He has a best friend called Claude, and he will be snoozing in the field by tomorrow.Useful linksFinal scoreboardRelated contentJubilant Gemma Stevens wins her first Big B weeks after one of the lowest points of her careerSee the final Burghley top 10 in picturesFrom I cant ride to Burghley clear: how a mindset reset turned the day around for Simon GrieveThere was swearing!: Gemma Stevens motors into Burghley lead after fast, gutsy clearFrom the courtroom to Burghley: US lawyer lines up for her first British five-starThe post Career-best for Katie Magee and her beloved Treworra, who will be holidaying with Claude by tomorrow appeared first on Your Horse.