McMahon's dominance started on the back nine of the third round on Saturday and, over the final 27 holes, the Colorado native finished at a blistering 23 under par to grab his second Las Vegas Challenge title.
It sets up an absolutely star-studded battle at the top of both leaderboards in the final round of the first Elite Series and Disc Golf Pro Tour stop of the season.
After a windy day, Calvin Heimburg holds a one-stroke lead in the tightly packed men’s division, and Paige Pierce has a four-stroke lead over the women’s field, which includes 46 players.