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Risk in Strokes

Expected strokes to hole out from common positions — the math behind every go-versus-lay-up call.

Updated 1 min ago

Every "go for it?" is a comparison of expected strokes, not best-case outcomes. Bad misses cost more than great shots gain, which is why the boring play usually wins.

SituationStrokes to hole out
150 yd approach from fairway3.0
150 yd approach from rough3.3
100 yd approach from fairway2.8
Greenside bunker, 10 yd2.5
Green, 30 ft putt2.0
Green, 10 ft putt1.6
Green, 3 ft putt1.05

Read it as differences, not absolutes. Fairway to rough at 150 costs 0.3 — real, but small. Getting to a 10-footer instead of a 30-footer saves 0.4. Missing the green into a bunker instead of putting from 30 ft costs 0.5. The strokes that actually wreck a card are the ones off this table: a penalty is +1 before you've hit a shot.

Two rules that follow from it

  • The 80% rule. If you can't pull the shot off 4 times in 5, the expected value is negative no matter how good the payoff looks. Play the shot you own.
  • Play for the next shot. Lay up to a number you love — a full wedge beats an awkward 40-yarder by more than the 30 yards you gave up.

Precision on the layup number comes from Wedge and Chip Distances; the conditions correction that decides whether the carry is even on comes from Yardage Adjustments.

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