The five-time major victor was facing the prospect of missing his allotted slot of 11:52am local time at Medinah on Sunday after the hotel he has been staying at was struck by lightning.
Like Mickelson, J.T. Poston is staying this week at the Eaglewood Resort & Spa, which sits less than a mile from tournament host Medinah Country Club.
Phil Mickelson rushed to Medinah Country Club for the 4th round of the BMW Championship after his hotel was struck by lightning and caught fire. My hotel was struck by lighting, I was on top floor, we were evacuated and the place is on fire. Mickelson's brother and caddie, Tim Mickelson, said Phil was soon allowed back into his room and would make the tee time.
Lefty is scheduled to tee off at the BMW Championship at 11:52 a.m. ET. Luck was on his side and he once again joked around saying his "clubs acted as a fire retardant".
Mickelson eventually got to the course in time to change shoes in the parking lot before heading to the range to warm up, pausing only to answer the phone when his wife called to check on him, according to the Associated Press. He is unlikely to qualify for the Tour Championship, since only the top 30 players in the FedEx Cup standings make it, and he is projected to finish 49th.
Mickelson began the final round on four under par, 17 shots behind leader Justin Thomas, who held a six-shot lead after firing a course record of 61 in the third round.
Golfer Phil Mickelson had an electrifying Sunday, and that was before he even stepped on the course.