Tournament of Champions: Jimmy Walker leads after first round in Hawaii
|Tournament of Champions, first round|
|-8 J Walker; -6 J Herman, J Thomas, R Moore; -5 D Berger, J Dufner|
|Selected others: -4 H Matsuyama (Jap), D Johnson; -3 J Day (Aus), P Reed; -2 R Knox (Sco); -1 J Spieth, B Watson|
|US unless stated|
America's Jimmy Walker shot an eight-under-par 65 to take a two-shot lead at the Tournament of Champions in Hawaii.
The 2016 PGA Championship winner posted six birdies and an eagle to head a strong field after the first PGA Tour round of 2017.
American trio Jim Herman, Justin Thomas and Ryan Moore are tied second after scoring six-under rounds of 67.
Scotland's Russell Knox is tied 19th on two under, after carding four birdies and two bogeys in his 71.
World number one Jason Day started with a three-under round of 70, with world numbers three and five Dustin Johnson (69) and Jordan Spieth (72) one ahead and two behind respectively.