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Your handicap, calculated by the official WHS rules.

We took the World Handicap System rulebook and applied all of it, strictly: score differentials, net double bogey, the playing conditions calculation, best 8 of the last 20. Cardie™ shows why your index moved and which round drops out next.

Handicap index in Cardie: 14.1, best 8 of 20, full WHS compliance, with its history, lowest and highest, and the next round to drop outHandicap index in Cardie: 14.1, best 8 of 20, full WHS compliance, with its history, lowest and highest, and the next round to drop out
Your last 20 rounds

The best 8 countThe other 12 don't

We do the complex math for you.

How your index is worked out

  1. Your playing handicap

    Your index, the course and the tees give the strokes you get on each hole: index times slope over 113, plus rating minus par. Those strokes set how much each hole can count.

    Next playing handicap 16 at Pineapple Valley, blue tees, with the strokes on each holeNext playing handicap 16 at Pineapple Valley, blue tees, with the strokes on each hole

  2. Save a round

    A round counts for your handicap when it's 9 or 18 holes, played from a set of tees, with Stats & HCP switched on.

    The round summary, with the handicap index going from 14.2 to 14.1The round summary, with the handicap index going from 14.2 to 14.1

  3. Each hole is capped

    A bad hole counts as net double bogey at most: par, plus two, plus the strokes you get on that hole.

    Hole 9, capped

    Par
    4
    Strokes you get
    1
    Most it can count
    4 + 2 + 1 = 7
    You wrote
    9

    Counts as7

  4. Your score differential

    Your adjusted score, measured against the rating and slope of the tees you played. For nine holes, an expected score for the other nine is added, as the WHS rules say.

    Score differential

    Adjusted score
    89
    Course rating
    72.2
    Slope
    130

    (113 ÷ 130) × (89 − 72.2)

    Differential14.6

  5. Limits on big moves

    An exceptional round brings your index down further. A run of bad ones can only push it so far above your lowest index of the last year.

    Limits on big moves

    1. Exceptional score7 or more below your index takes off 1 more. 10 or more takes off 2.
    2. Soft capMore than 3 above your lowest index of the last year: only half the rise counts.
    3. Hard capNever more than 5 above it.

  6. Best 8 of your last 20

    Your index is the average of your 8 best differentials from your last 20 rounds. With fewer rounds, fewer count, from 3 rounds up.

    The handicap index sheet: 14.1, its trend, and the rounds that drop out nextThe handicap index sheet: 14.1, its trend, and the rounds that drop out next

Your handicap, explained

Your 90 at Pineapple Valley was a 15.5 differential, better than the 16.0 it replaced in your best 8. Your index went from 14.2 to 14.1. Next to drop out is a 13.8 from May.

Before the round, and after

  • Your playing handicap on any course

    Pick the course and tees before you play, and see the strokes you get on each hole.

  • Your playing partner's too

    Check it for whoever you're playing with, so you agree on the strokes before the first tee.

  • Your handicap, explained

    Ask Cardie™ to explain it at any time: what moved your index, and which round drops out next.

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