# How to break 100 in golf

A bogey on every hole of a par 72 is 90, so breaking 100 needs no pars at all: nine bogeys and nine double bogeys is exactly 99. The task is removing the holes worse than a double, which is a penalty problem rather than a swing problem.

## Key figures

- 9 bogeys and 9 doubles totals 99, with 0 pars.
- A tee shot out of bounds on a 400 yard hole costs 2.05 strokes, which is the most expensive single mistake in golf.
- From the rough at 220 yards, advancing beats laying up by 0.27 strokes, which is the opposite of the usual guidance.

## Scope

- The published lie tables begin at 20 yards and are flat below it, so chipping and pitching cannot be priced from them and are not.

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