Cory Hersha and Dan Knowlton took big leads after Wednesday’s first day in the 2023 season PBA Regional Players Invitational and PBA50 Regional Players Invitational at South Point Bowling Plaza in Las Vegas, respectively, according to results posted here and here. Hersha leads the 70-player PBA field on games of 246, 256, 189, 214, 202, 243, 223, 259, 281, 279, 257 and 258 for a 12-game total of 2,907, 87 pins ahead of the 2,814 of Eric Jones. “This block was incredible,...