Dustin Johnson has twice before won tournaments shortened to 54 holes. With just over nine holes to play in the season-opening Hyundai Tournament of Champions, he appears headed toward a third.
Johnson leads Steve Stricker by five and Brandt Snedeker and Keegan Bradley by six.
Snedeker had crept closer to Johnson with three birdies sandwiched around an eagle early in the day, but back-to-back bogeys have dropped him back.
Of the players in the top 10 of the 30-man winners-only field, Ricki Fowler is having the best round so far at 4 under, but he's already through 12 holes and is well back at 6 under for the week.
Johnson's other two weather-shortened wins came at the 2011 Barclays and 2009 AT&T Pebble Beach National Pro-Am.