My read is you pick a spot on the rider with high contrast, mid chest is good with shirt designs, track for 1/2 a second then fire the shutter, keeping tracking of course, if you want to practise try something like a 3 second exposure & try & get that right, oh elbows up & shoot out breath out ( just like target shooting really ).
P.S. Sweet pic clmintie, soph did you proud.
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