Rainy, windy conditions were the story of the day in the opening round of the 2025 Houston Open as players struggled to score around Memorial Park Golf Course. Handling the on-and-off rain clouds and an annoying breeze most effectively were a group of four players including Taylor Pendrith and Keith Mitchell who rose to the top of the leaderboard thanks to first-round 65s.

Keith Mitchell made a late eagle and Ryan Gerard let a good start slip away by finishing with two bogeys. They both wound up at 5-under 65, tied for the lead with Alejandro Tosti and Taylor Pendrith when play was suspended by darkness.

Rory McIlroy had to hang on and take what the golf course presented to him at the Houston Open as has ground to make up entering the second round.