The most exciting part about lure coursing is see how the dogs handle it when the lure speeds off in another direction. Shelby here did quite well and you can see she's putting on the brakes because the lure literally turned 180 degrees and is now speeding back towards her. Some dogs are so agile they almost meed to pirouette.
Canon 1D X, Canon 70-200/f2.8L IS Mark II w/ Canon EF Extender 1.4x Mark III
280mm, f5.6, 1/1250 sec @ 500 ISO