Four championship courses are primed and ready for what is always one of the most challenging and sometimes frustrating events of the year: the 2018 Amateur World Doubles Championship. Now gearing up for it's 28th running, this XM-Tier PDGA Major presented by Innova Champion Discs and HouckDesign pushes doubles teams to the limits as they take on some of the world's most unforgiving courses while playing multiple formats of doubles disc golf, including the dreaded Worst Throw format during the Finals.