Field lists come from the OWGR website
which only include golfers who have previously played in an OWGR-sanctioned event.
When you add a player the default prediction is 2 strokes worse than that tour's average skill.
For the PGA Tour, European Tour, and Korn Ferry Tour events, any weather adjustments we've listed on our site are included in these simulations.
Probabilities are based off of 60K simulations.