Johnson, with one victory under his belt already this year, is the defending champion.
SAN ANTONIO (AP) -- Defending champion Zach Johnson matched the La Cantera course record with a 10-under 60 on Saturday to take a three-stroke lead in the suspended third round of the rain-soaked Texas Open.
Johnson holed out from 84 yards for an eagle on the par-7 seventh and had eight birdies on the soggy course in the round interrupted by a five-hour rain delay. He tapped in for par on 18 seconds after the horn blew and darkness suspended play.
Paul Goydos and three-time champion Justin Leonard were 12 under through 12 holes. They'll resume the round Sunday morning.