View photo
LAKE FOREST, Illinois (Reuters) - 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 weather-hit BMW Championship.
Day, who could leapfrog Rory McIlroy and Jordan Spieth to reach the top of the rankings with victory this week, produced sizzling form as he moved to 10 under par after 17 holes before play was suspended for the day due to the threat of lightning.