Will Scottie Scheffler win the grand slam before 2028?

Scheffler’s recent form supports a non-trivial chance of completing the career Grand Slam before the deadline. He remains one of the best ball-strikers in the world, has continued to produce elite finishes in majors, and the most recent U.S. Open showed that he is still close enough to be in the mix without needing a dramatic leap in performance. If the remaining missing major is the U.S. Open, then the question effectively comes down to one high-leverage opportunity in 2027, which keeps the probability meaningfully below coin-flip territory but well above a token 5%.

The main reason to keep the number modest is that golf majors are extremely noisy, and one specific major is much harder to project than a general “will he win another major” question. Scheffler can be the best player in the field and still lose to variance, course fit, weather, or a hot putter from someone else. The compressed timeline also matters: even if he stays elite, there may only be one realistic shot to complete the set before 2028, and one swing of outcomes is a thin basis for a high probability.

Compared with the market, 5% looks too bearish. That price implies something close to a one-in-twenty outcome, which is hard to reconcile with a player of Scheffler’s caliber who is still in his prime and already repeatedly contending in majors. The market may be over-weighting the fact that there is only one remaining major title to chase and under-weighting how often an all-time level player can convert a single big chance. I still think this is a long shot, but not nearly as unlikely as the current price suggests.