Jason Day's caddie presented British Open officials with an interesting option on the par-4 ninth hole at Royal Birkdale. Colin Swatton wondered about hitting a tee shot onto the adjacent 10th fairway for a shorter, clearer shot into the green.
The R&A responded with an invisible white line in the turf.
In a decision aimed primarily at spectator safety, R&A chief rules director David Rickman issued a notice of a local rule for the week: "When playing the ninth hole only, a ball on or beyond the 10th fairway (defined by the edge of the closely-mown area) is out of bounds."
Out-of-bounds stakes typically are on the boundary of a golf course. It is rare...