Official NHA Assessment
Race 3: BOOK A TABLE CALL 011 681 1796 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)
Line Horse
Secret Chord
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Love Tap 3 57.5 1 0.00 6.0 - 76 6 +6 2 Secret Chord 4 60.0 2 0.25 7.0 79 79 79 +0 3 Dhow Solo 3 57.5 3 2.50 6.0 - 76 76 +76 4 Pacific 4 60.0 4 5.00 7.0 - 79 79 +79 5 Bryden Bay 2 60.0 5 5.50 4.0 64 85 85 +21 6 Major Strides 3 60.0 6 6.75 6.0 - 81 81 +81 7 Sutherland 4 58.5 7 18.00 7.0 - 76 76 +76 99 Royal Summons 2 60.0 99 0.00 4.0 - 85 85 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Love Tap | - | 69 | 6 | +63 | 6.0 | - | |
| 2 | Secret Chord Line | 79 | 92 | 79 | +13 | 7.0 | ||
| 3 | Dhow Solo | - | 62 | 76 | -14 | 6.0 | - | |
| 4 | Pacific | - | 50 | 79 | -29 | 7.0 | - | |
| 5 | Bryden Bay | 64 | 63 | 85 | -22 | 4.0 | - | |
| 6 | Major Strides | - | - | 81 | -81 | 6.0 | - | |
| 7 | Sutherland | - | 85 | 76 | +9 | 7.0 | - | |
| 99 | Royal Summons | - | - | 85 | -85 | 4.0 | - |
Assessment Methodology
Calculation Steps:
- Identify Line Horse - consistent performer used as reference
- Calculate WFA Allowance based on age, distance, and month
- Apply Drag Adjustment for beaten margin
- Calculate Actual Weight Performance:
Weight - Drag - WFA - Compare to Line Horse to determine race rating
- Apply special rules (maiden caps, layoff allowance)
Key Formulas:
- Drag Effect: Varies by distance (see Benchmarks page)
- 1 length ≈ 1kg at 1 mile (1600m)
- WFA Scale: Based on Admiral Rous's 1855 table
- Rating Points: 1kg = 2 rating points