| All Players start with a grade of 100 (Not to be confused with the BCF grading). |
| Fifty is added to the loser's grade then winner's grade subtracted from the total. The result is divided by five. |
| Final total (fractions rounded up) is added to the winner's grade and subtracted from the loser's grade. Minimum lose: 1 point, minimum gain: 1 point. |
| Draws: Difference between the two grades is divided by five and added to both grades.. |
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