Padraig Harrington says winning on PGA Tour Champions makes you think 'Oh, maybe I can do it on the regular tour'

Padraig Harrington is in a kind of middle ground in his career. Now 53, the Irishman is one of the best players on the PGA Tour Champions. In three years on the circuit, he has nine wins in 48 starts and nearly $7 million in earnings. This season, he has…