217: Number of places in the Official World Golf Ranking that American Tyler Duncan jumped, to No. 170, after winning the RSM Classic for his first PGA Tour victory. Spain’s Jon Rahm improved two spots, to No. 3, after winning the European Tour’s season-ending DP World Tour Championship and the year-long Race to Dubai title. Rahm had been as high as No. 2 in the world in early 2018.
