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Prove It 5K & 10K – GM Milford Proving Ground April 18, 2026 – Milford, Michigan Looking for a Michigan spring 5K or 10K that’s unlike anything else? Prove It 5K & 10K gives you exclusive access to the GM Milford Proving Ground, one of the most iconic and secretive automotive testing facilities in the […] 
Race Where Airplanes Fly! Don’t miss this experience to run/walk on a course typically reserved for airplanes! GRR Runway 5K & 1 Mile, presented by the Christman Company, is an annual run/walk along Gerald R. Ford International Airport’s runway. Athletes will head out onto one of the major airport runways for a lightning fast race. […] 
Run or walk along GM’s Milford Proving Ground! Think you’ve got the fastest 5k or 10K around? Put your money where your mouth is and come race on this world famous automobile test track. The course is challenging and beautiful and this is the only chance most mere mortals will get to visit this unique […] |
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