Brooks Koepka, Rickie Fowler, Shane Lowry, defending champion Min Woo Lee currently headline field for 2026 Texas Children’s Houston Open Houston, TX – The Astros Golf Foundation hosted media day for the 2026 Texas Children’s Houston Open on Monday morning at Memorial Park Golf Course .   The day consisted of remarks from Houston Mayor John Whitmire , Astros Owner and Chairman Jim Crane , Giles Kibbe, President of the Astros Golf Foundation , Kelly Jo Golson, Chief Brand &