A 30 handicap averages 105 to 108, not 102. Here is the stat line behind that number, what the published data does and does not cover, and how it compares to scratch through 25.
A 25 handicap averages 100 to 103, not 97. Here is the stat line behind that number, side by side with every handicap from scratch to 30.
A 15 handicap hits about 4 greens a round, a scratch golfer about 11. Here is GIR by handicap from 0 to 30, with the rest of the stat line next to it.
A 20 handicap averages 95 to 98, not 92. Here is the full stat line behind that number, side by side with every handicap from scratch to 30.
The average Handicap Index is 14.0 for men and 28.8 for women. Here is where each handicap ranks, and what a scratch, 5, 10, 15, 20, 25 and 30 actually shoot.
A 10 handicap averages 84 to 87, not 82. Here is the stat line behind that number, side by side with every handicap from scratch to 30.