Jordan Spieth will have to be careful Sunday if he hopes to repeat at Champion Golfer of the Year. (Ian Rutherford/USA TODAY Sports)

3. Spieth blows three-stroke lead on 18 after taking 22 minutes to get ruling.

Taking Carnoustie apart in the afternoon winds, Spieth appears set to become the first under-25, back-to-back British Open champion since Young Tom Morris. But a tee shot into Barry Burn, followed by another into the portion fronting the green recalls Jean van de Velde’s epic 1999 collapse. Things turn even more bizarre as Spieth takes his shoes off and heads into the burn to play shot five, only to have some baby ducklings seen all week dislodge his ball. Rules chaos ensues and Van de Velde, working on course for French TV, even offers his advice. Eventually Spieth records seven and edges Woods and Franceso Molinari in a four-hole aggregate playoff.