Padraig Harrington is a shot off the lead after the opening round of his Indonesia Open debut in Jakarta.

Harrigton made eight birdies as he shot 64 to leave him seven under par, a stroke behind Australian rookie Kalem Richardson who carded a bogey-free round of 63.

Three-time major winner Harrington started brightly with a birdie four on the opening hole, but slipped back to level par after a bogey on the par-three fourth.

Harrington didn't drop a shot after that though, and the Dubliner has opened up a three shot lead over Adam Groom, Byrce Easton, Arjun Atwal and Thanyakon Khrongpha who are all tied for third place on four under.