After Dustin Johnson’s victory at the Canadian Open, Justin Rose is the only player who can overtake him this week for world No. 1.
According to Golf Channel world-rankings guru Alan Robison, for Rose to become No. 1 for the first time, he needs to win and have Johnson finish worse than solo 17th, a three-way tie for 16th, a five-way tie for 15th or a seven-way tie for 14th.
There is no cut this week at the WGC-Bridgestone Invitational, an event that Johnson won in 2016 but otherwise hasn’t finished better than 15th.
Rose, meanwhile, has five career top-5s at Firestone, but no wins.
In other OWGR projections, Tiger Woods, an eight-time winner at Firestone, could move as high as No. 20 in the world if he were to snap a five-year winless drought.
A runner-up finish could move him as high as 30th, a fifth-place showing as high as 39th and a 10th-place result as high as 40th. He enters this week at No. 50, after narrowly cracking the limited-field event.