Matt Kuchar shot 5-under 66, despite a double bogey, and is one shot off the lead after Day 1 of the Singapore Open.
Kuchar had three birdies and an eagle through his first 12 holes, but doubled the par-4 13th. He responded, however, with birdies on Nos. 15 and 18.
Kosuke Hamamoto, a 20-year-old amateur, holds the early advantage, following a 6-under 65. Play was suspended for 75 minutes in the afternoon, because of lightening. Several of the late finishers will have to wrap up their opening rounds on Friday, with none of them lower than 2 under.