Calculate dressage percentages from score totals, movement coefficients, or judge percentages using the deductions you enter.
Dressage Percentage Formula
Adjusted percentage = (good marks − mark deduction) ÷ maximum marks × 100 − percentage-point deduction
Choose the Source of Your Score
Use totals when you have the good marks and maximum possible marks from a test sheet. Use movement entries to build those totals from individual marks and coefficients. Use judge percentages when each judge’s score has already been adjusted. The fourth method converts an entered 100-minus-percentage value back into percentage form. These methods are separate so that deductions are not silently applied twice.
Good Marks and Maximum Marks
Enter the sum of the awarded marks after applying any movement coefficients, before the separate deductions entered below. Use the maximum printed for that exact test. Do not assume that every test has the same number of movements or possible points. A total of 210 out of 300 is 70%; 210 out of 350 is 60%. The numerator alone is not enough to interpret performance.
Movement Marks and Coefficients
Enter a pair for each movement using mark:coefficient, separated by commas, spaces, or semicolons. For example, 7:1,6.5:2,8:1 means marks of 7, 6.5, and 8 with coefficients of 1, 2, and 1. The earned total is 7 + 13 + 8 = 28, and the possible total is 10 + 20 + 10 = 40. The result before deductions is 70%. Include collectives or general-impression entries explicitly when the actual test requires them. No fixed set of collectives is added automatically.
Points Are Different from Percentage Points
A mark deduction is subtracted before division by the test maximum. A percentage-point deduction is subtracted after calculating the percentage. With 210 good marks out of 300, a two-mark deduction gives 69.333%. A two-percentage-point deduction instead gives 68.000%. Use the actual deduction specified for the discipline, level, test, and rules edition. Enter the total deduction amount, not the number of errors.
Averaging Judges
Enter one to seven already adjusted percentages. The calculator takes their arithmetic mean with equal weight. Scores of 69.5%, 70%, and 70.5% average to 70%. It also reports the lowest and highest supplied judge scores. This method does not pool raw marks, apply special technical/artistic weighting, or infer the competition’s intermediate rounding procedure.
Understanding the 100-Minus-Percentage Result
The complement of 70% is 30 points: 100 − 70 = 30. The calculator displays this arithmetic comparison to three decimal places, and can reverse it when that value is the only input available. An official eventing result may require prescribed intermediate rounding, a particular method for combining judges, and other penalties. Do not add an already included deduction again after using an adjusted percentage.
Worked Example with Both Deduction Types
Suppose the test has 280 possible marks, the awarded total is 196, the mark deduction is 2, and the additional percentage-point deduction is 0.5. First subtract the marks: 196 − 2 = 194. Next calculate 194 ÷ 280 × 100 = 69.285714%. Finally subtract 0.5 percentage points to get 68.785714%, displayed as 68.786%. The unrounded complement is 31.214286 points.
Scope and Interpretation
This calculator checks score arithmetic; it does not assign a placing, break ties, judge a movement, or decide elimination. It accepts marks from 0 to 10 and whole-number coefficients from 1 to 10 in movement mode. Copy the coefficients and deductions from the actual test sheet. Values are calculated before display rounding, so recomputing from rounded output can differ slightly. Consult the governing rules and official result when competition procedures matter.
Reference Table
| Mark deduction | Deduction (pp) | Adjusted score (%) | 100 − score |
|---|---|---|---|
| 0 | 0 | 70.000% | 30.000 |
| 2 | 0 | 69.333% | 30.667 |
| 0 | 2 | 68.000% | 32.000 |
| 2 | 0.5 | 68.833% | 31.167 |

Sources
US Equestrian, Dressage Rules & Equipment, 2026 resources. All examples illustrate the explicitly stated arithmetic; applicable test rules determine actual deductions and official rounding.