Official NHA Assessment
Race 3: JOIN ZIMFUN RACING CLUB BORROWDALE C STAKES 75 (For All Horses with a nett rating of 75 & below)
Line Horse
Empire Blue
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Burn Bright 3 53.0 1 0.00 5.0 64 54 54 -10 2 Captive Moon 6 60.0 2 1.50 0.0 73 81 81 +8 3 Empire Blue 4 60.0 3 4.50 2.5 73 73 73 +0 4 My Secret Place 5 57.5 4 5.25 0.0 75 73 73 -2 99 King's Crown 3 60.0 99 0.00 5.0 - 68 68 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Burn Bright | 64 | 68 | 54 | +14 | 5.0 | - | |
| 2 | Captive Moon | 73 | 75 | 81 | -6 | 0.0 | - | |
| 3 | Empire Blue Line | 73 | 71 | 73 | -2 | 2.5 | ||
| 4 | My Secret Place | 75 | 71 | 73 | -2 | 0.0 | - | |
| 99 | King's Crown | - | 79 | 68 | +11 | 5.0 | - |
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