How is my Handicap Index calculated?

Under Rule 5.2b of the 2024 Rules of Handicapping, once you have at least 20 scores your Handicap Index is the average of the lowest 8 of your most recent 20 Score Differentials, rounded to the nearest tenth. The differentials include any exceptional-score or Committee-review adjustments.

Golf Canada notes that your Handicap Index:

• Updates after each new round and applies at any course or tee, because it is converted to a Course Handicap for the tees you play.
• Has a maximum of 54.0 for all players.
• Is subject to the soft and hard caps, which limit increases compared with your Low Handicap Index.

If your Handicap Index calculates as a negative figure, it is a plus handicap. Players with a plus handicap are encouraged to prefix it with a plus sign (+). With fewer than 20 scores, a table in Rule 5.2a decides how many differentials are used and what adjustment applies.