Xander Schauffele’s first-round 62 has him up three at the PGA

LOUISVILLE — It’s time again for the riddle of Xander Schauffele, a puzzler familiar to golf freaks but less so to the general public. Isn’t it wildly impressive that he has finished in the top 25 in 20 of his 27 starts in majors — including 12 top-10s? Yeah. Isn’t it suboptimal to have zero wins? Yeah.