The 28-year-old Argentine Tosti, who had finished in a five-way traffic-jam for second place behind Stephan Jaeger in the 2024 tournament after a hiccup bogey on his final Sunday hole cost him dearly, fashioned his 65 with an impressive bogey-free round.

The world No. 1 is chasing Keith Mitchell, Ryan Gerard, Alejandro Tosti, and Taylor Pendrith, who all sat at 5-under 65 after the first round.

World No. 1 Scottie Scheffler returns to Houston for the sixth straight season as he still searches for his first tournament title. It has not been for a lack of effort from the native Texan. Scheffler has scored finishes of T2, T9 and T2 in his last three trips to Memorial Park.

The PGA Tour returns to Texas this week for the Texas Children's Houston Open 2025. Here are the players' power rankings and how to watch.

The PGA Tour is in the Lonestar state for the Texas Children's Houston Open, as players look to get into major championship shape ahead of The Masters.