Sebastian Muñoz scored 16 of 18 green players in the first round of the Rocket Mortgage Classic and finished without penalty points. Muñoz finished his round with a draw, 17th, 3 back; Davis Thompson and Brandon Hagee tied for U7; Seamus Power and Matthew Wolf share third place with 6 points less; and Satoshi Kodaira, Kevin Kisner, JJ Spawn, Tom Lewis and Jason Day tied for fifth place for 5 under.
After running 291 yards on a 577-yard par-5, 17th Sebastian Muñoz made his third 4-foot throw, which he threw at the bird with one hit to the hole. This moved Sebastian Muñoz 2 less in the round.
After a 307-yard run in a 393-yard-third of par-4s, Muñoz made his second 6-foot throw, which he threw at the bird with one hit to the hole. This moved Muñoz 3 less per round.
After hitting a tee on the field at 207 yard ninth par-3, Muñoz missed the bird attempt on the 5-foot pitch by taking par. This left Muñoz 3 fewer per round.