Official NHA Assessment
Race 1: HOLLYWOODBETS KENILWORTH WELCOMES YOU MAIDEN PLATE (For all Maidens)
Line Horse
Royal Port Louis
Reference for assessment
Exact Matches
1 / 18
Calculated = Official
Close Matches
3 / 18
Within 2 points
Significant Diffs
13 / 18
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Zeitz 3 58.0 1 0.00 7.0 83 50 50 -33 2 Royal Port Louis 2 60.0 2 2.75 0.0 70 70 70 +0 3 Bombers In The Sky 3 58.0 3 3.50 7.0 78 51 68 -10 4 Express Yourself 2 58.0 4 3.70 0.0 80 65 70 -10 5 Red Dawn 3 58.0 5 4.70 7.0 79 50 69 -10 6 Mr Fox 3 58.0 6 5.10 7.0 - 50 50 +50 7 Harun Al Rashid 3 58.0 7 6.35 7.0 - 50 50 +50 8 Bomber Bay 2 58.0 8 6.85 0.0 75 64 65 -10 9 Haarlem 3 58.0 9 7.60 7.0 - 50 50 +50 10 What Again 3 58.0 10 8.00 7.0 - 50 50 +50 11 Repetition 3 58.0 11 9.25 7.0 - 50 50 +50 12 Umhlanga 3 58.0 12 11.00 7.0 - 50 50 +50 13 Always Shining 3 58.0 13 21.00 7.0 85 50 75 -10 14 Copper Plate 3 58.0 14 26.75 7.0 - 50 50 +50 99 Noble Hero 3 58.0 99 0.00 7.0 - 50 50 +0 99 Tunguska 3 58.0 99 0.00 7.0 - 50 50 +0 99 Green Okra 2 58.0 99 0.00 0.0 - 64 64 +0 99 Western World 2 58.0 99 0.00 0.0 - 64 64 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Zeitz | 83 | 104 | 50 | +54 | 7.0 | - | |
| 2 | Royal Port Louis Line | 70 | 70 | 70 | ✓ Match | 0.0 | ||
| 3 | Bombers In The Sky | 78 | 84 | 68 | +16 | 7.0 | - | |
| 4 | Express Yourself | 80 | 74 | 70 | +4 | 0.0 | - | |
| 5 | Red Dawn | 79 | 79 | 69 | +10 | 7.0 | - | |
| 6 | Mr Fox | - | 99 | 50 | +49 | 7.0 | - | |
| 7 | Harun Al Rashid | - | 80 | 50 | +30 | 7.0 | - | |
| 8 | Bomber Bay | 75 | 60 | 65 | -5 | 0.0 | - | |
| 9 | Haarlem | - | 73 | 50 | +23 | 7.0 | - | |
| 10 | What Again | - | 62 | 50 | +12 | 7.0 | - | |
| 11 | Repetition | - | 74 | 50 | +24 | 7.0 | - | |
| 12 | Umhlanga | - | 62 | 50 | +12 | 7.0 | - | |
| 13 | Always Shining | 85 | 76 | 75 | +1 | 7.0 | - | |
| 14 | Copper Plate | - | 75 | 50 | +25 | 7.0 | - | |
| 99 | Noble Hero | - | 78 | 50 | +28 | 7.0 | - | |
| 99 | Tunguska | - | 69 | 50 | +19 | 7.0 | - | |
| 99 | Green Okra | - | 66 | 64 | +2 | 0.0 | - | |
| 99 | Western World | - | 70 | 64 | +6 | 0.0 | - |
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