Unfortunately, I don't get as much practice on this as I'd like - I make it to 2-3 meets a year and one is the state meet! My forte is landscape and agriculture - not as much sports, so I have a couple of specific questions! I use my 5D M3 and either 100-400 II or 24-105. I mostly photography Triple Jump, High Jump as well as 100/300m hurdles. On the triple jump, I get some good shots running toward the pit but the landing is tougher since the athlete jumps up then drops down in the frame. Any recommendations for keeping focus through the run, jump and landing? I shoot horizontal and have tried using AI Servo but I don't seem to stay on the person through the jump! I usually set up at the end of the pit - which I need to zoom in since I'm outside the track/field. High Jump - I focus on the name that's printed on the center of the pole but the subject is usually out of focus since they end up a few feet closer. Is the best option to use a wide aperture? Where do you focus? 100-300m hurdles - this is ok, I usually set up at the very end - beyond the finish (outside the track) and line up on the lane and can get some ok shots over the hurdles. Surprisingly, less were in focus that I imagined - think I need to go above 1/500. Recommend AI Servo? I'd appreciate if you had any tips, feedback or ideas for shooting these sports!! Thanks!