The wobbly dates of November 23 or November 24 have now been set for a clash of the two titans - box office-wise, at least - fittingly on the greens of Shadow Creek Golf Course in Las Vegas, The Washington Post reported.
Both golfers will compete in this week's WGC-Bridgestone Invitational, which kicks off today at Firestone Country Club in Akron, Ohio.
According to ESPN, the showdown is scheduled for Thanksgiving weekend either Friday, November 23 or Saturday, November 24.
"It's a ridiculous amount of money", Mickelson told Shipnuck at the time. "No matter how much money you have, this amount will take both of us out of our comfort zone".
Mickelson, 48, has said it could turn into a regular exhibition event, in the same way that top tennis stars play each other away from the regular tour.
It's been well documented that these two icons of the game haven't always had a good relationship, but both have conceded they became closer at Ryder Cups over the years as they both moved in to different stages of their careers.
The online bookmaker has Woods, a 14-time major champion, at $1.67 ahead of five-time major victor Mickelson ($2.10). The two played a practice round together Wednesday at Firestone, per ESPN.
Both make up the U.S. Ryder Cup committee along with 2018 captain Jim Furyk; Woods is a vice captain for Furyk and in contention for one of the four at-large picks.
With Mickelson's first win in five years earlier this season, and Woods' resurgence from multiple back surgeries, the hype went into overdrive.