Official NHA Assessment
Race 5: COMPUTAFORM FM 71 DIVIDED HANDICAP (F & M) (For Fillies and Mares)
Line Horse
Keepingthepeace
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
3 / 16
Within 2 points
Significant Diffs
7 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Stunning Kitten 5 56.5 1 0.00 0.0 64 68 64 +0 2 Cap Estel 3 54.5 2 1.75 6.0 72 57 62 -10 3 Keepingthepeace 4 60.0 3 3.25 3.0 72 72 72 +0 4 Fasinada 4 56.0 4 4.95 3.0 64 61 61 -3 5 Three Hills 3 51.0 5 5.00 6.0 73 45 63 -10 6 Zazu 6 55.5 6 5.90 0.0 74 66 66 -8 7 The Sash 6 55.0 7 5.95 0.0 61 65 65 +4 8 Liverpool Legend 4 57.5 8 6.65 3.0 67 64 64 -3 9 Constantia Haze 3 55.0 9 7.65 6.0 73 53 63 -10 10 Koopa Troopa 4 54.5 10 7.90 3.0 61 58 58 -3 11 Rabia The Rebel 7 58.0 11 8.50 0.0 67 71 71 +4 12 Winning Queen 6 49.5 12 9.30 0.0 55 54 54 -1 13 Scottadito 3 54.0 13 11.60 6.0 71 51 61 -10 14 Bella Swan 3 59.0 14 21.85 6.0 81 61 71 -10 99 Got You 4 52.0 99 0.00 3.0 - 53 53 +0 99 Lady Calavera 4 58.0 99 0.00 3.0 - 65 65 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Stunning Kitten | 64 | 66 | 64 | +2 | 0.0 | - | |
| 2 | Cap Estel | 72 | 71 | 62 | +9 | 6.0 | - | |
| 3 | Keepingthepeace Line | 72 | 66 | 72 | -6 | 3.0 | ||
| 4 | Fasinada | 64 | 52 | 61 | -9 | 3.0 | - | |
| 5 | Three Hills | 73 | 67 | 63 | +4 | 6.0 | - | |
| 6 | Zazu | 74 | 71 | 66 | +5 | 0.0 | - | |
| 7 | The Sash | 61 | 55 | 65 | -10 | 0.0 | - | |
| 8 | Liverpool Legend | 67 | 59 | 64 | -5 | 3.0 | - | |
| 9 | Constantia Haze | 73 | 68 | 63 | +5 | 6.0 | - | |
| 10 | Koopa Troopa | 61 | 59 | 58 | +1 | 3.0 | - | |
| 11 | Rabia The Rebel | 67 | 64 | 71 | -7 | 0.0 | - | |
| 12 | Winning Queen | 55 | 58 | 54 | +4 | 0.0 | - | |
| 13 | Scottadito | 71 | 55 | 61 | -6 | 6.0 | - | |
| 14 | Bella Swan | 81 | 71 | 71 | ✓ Match | 6.0 | - | |
| 99 | Got You | - | 50 | 53 | -3 | 3.0 | - | |
| 99 | Lady Calavera | - | 81 | 65 | +16 | 3.0 | - |
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