However , discerning the difficulty of a course is problematic when golfer skill is unknown .
Fewer putts are sunk on bumpy greens , and scores are higher on more difficult courses ( e.g. , those with narrow fairways , deep rough , and many water hazards ) .
Discerning the difficulty of a course is problematic when golfer skill is unknown .
Fewer putts are sunk on bumpy greens , and scores are higher on more difficult courses ( e.g. , those with narrow fairways , deep rough , and many water hazards ) .