Tiger Has An Index?

From a reader whose identity will be protected because really, who wants the world to know they were watching the Tavistock Cup?

Anyway, this brave viewer passed along this mind boggling anecdote from Golf Channel announcer Gary McCord:

Tiger's index at Isleworth (Course rating 77, Slope 142, length 7,500 yards) is +13.5. Which means that he'd have to give a 5 handicap a stroke a hole.

Of course I looked on GHIN and could not find an index listing for Tiger, so take that one for what it's worth.