LAKE FOREST, Illinois — Australian Jason Day rocketed out of the blocks on Thursday in his quest for world number one status and a fourth win in six starts, seizing a four-shot early lead in the opening round of the BMW Championship at Conway Farms Golf Club.
Day, who could leapfrog Rory McIlroy and Jordan Spieth to reach the top of the rankings with victory this week, produced blistering form as he moved to 10 under par after 17 holes before play was suspended due to the threat of lightning.
That left the Australian world number three a commanding four strokes ahead of American Daniel Berger, who had opened with a six-under 65 in breezy conditions.