Official NHA Assessment
Race 2: GREYVILLE CONVENTION CENTRE OPEN MAIDEN (For all Maidens)
Line Horse
Gripen
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
5 / 12
Within 2 points
Significant Diffs
6 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 White Seahorse 2 59.5 1 0.00 0.0 74 68 68 -6 2 Gripen 4 55.0 2 2.10 1.0 60 60 60 +0 3 El Capitan 2 61.0 3 3.60 0.0 77 72 72 -5 4 King Celtillus 3 58.5 4 5.50 2.5 72 61 62 -10 5 O Space O 2 59.0 5 5.55 0.0 73 67 67 -6 6 Irish Anthem 3 56.5 6 5.75 2.5 68 57 58 -10 7 Augrabies 3 56.5 7 11.05 2.5 68 57 58 -10 8 Remus From Rome 3 61.0 8 23.75 2.5 - 66 66 +66 9 Fern Hill 3 54.0 9 99.99 2.5 63 52 53 -10 99 Green Mile 4 58.0 99 0.00 1.0 - 63 63 +0 99 Mont Tremblant 3 56.0 99 0.00 2.5 - 56 56 +0 99 Run For Peace 3 47.5 99 0.00 2.5 - 39 39 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | White Seahorse | 74 | 81 | 68 | +13 | 0.0 | - | |
| 2 | Gripen Line | 60 | 58 | 60 | -2 | 1.0 | ||
| 3 | El Capitan | 77 | 70 | 72 | -2 | 0.0 | - | |
| 4 | King Celtillus | 72 | 70 | 62 | +8 | 2.5 | - | |
| 5 | O Space O | 73 | 59 | 67 | -8 | 0.0 | - | |
| 6 | Irish Anthem | 68 | 60 | 58 | +2 | 2.5 | - | |
| 7 | Augrabies | 68 | 56 | 58 | -2 | 2.5 | - | |
| 8 | Remus From Rome | - | 33 | 66 | -33 | 2.5 | - | |
| 9 | Fern Hill | 63 | 63 | 53 | +10 | 2.5 | - | |
| 99 | Green Mile | - | 66 | 63 | +3 | 1.0 | - | |
| 99 | Mont Tremblant | - | 56 | 56 | ✓ Match | 2.5 | - | |
| 99 | Run For Peace | - | 54 | 39 | +15 | 2.5 | - |
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