Tiger Woods and son Charlie share the lead at PNC Championship

Pádraig Harrington and son Paddy were at 12-under 60.

Tiger Woods and son Charlie Woods during the PNC Championship at Ritz-Carlton Golf Club. Pic: Douglas P. DeFelice/Getty Images

Tiger Woods and 15-year-old son Charlie ran off five straight birdies on the back nine Saturday for a 13-under 59 in the scramble format, giving them a share of the lead in the PNC Championship in Woods’ first competition since back surgery in September.

Woods said he scheduled that surgery — the sixth on his lower back in the last 10 years — to be sure he recovered in time to play with his son for the fifth straight year.