Congratulations on finishing a marathon this winter/early spring! If you are also running the full Denver Colfax Marathon this makes you eligible for our Double Marathon Challenge. You've earned a holographic antique silver coaster if you complete the below information to prove eligibility.
Please note - if we aren't able to confirm your results using the URL you provided, we will let you know. Otherwise assume you are set - and we're looking forward to you completing your second marathon at Colfax.
