Official NHA Assessment
Race 5: FAIRVIEW MILE (Open - Non-Black Type)
Line Horse
Grazinginthegrass
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
3 / 16
Within 2 points
Significant Diffs
13 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Native Tongue 4 57.5 1 0.00 2.5 105 105 105 +0 2 Grazinginthegrass 4 54.0 2 0.25 2.5 98 98 98 +0 3 My Bestie 7 54.0 3 0.50 0.0 98 108 108 +10 4 Cat Daddy 6 55.5 4 0.60 0.0 100 111 111 +11 5 Blingking 4 52.0 5 2.85 2.5 94 96 96 +2 6 Marmara Sea 5 60.0 6 3.35 0.0 110 116 116 +6 7 Herodotus 6 52.0 7 3.85 0.0 91 100 100 +9 8 Greenlighttoheaven 4 52.5 8 4.35 2.5 91 95 95 +4 9 Oscar Wilde 5 57.0 9 5.35 0.0 104 109 109 +5 10 Jaeger Moon 7 55.0 10 5.45 0.0 100 105 105 +5 11 Blackball 7 58.0 11 5.50 0.0 106 111 111 +5 12 Carioca 6 55.5 12 7.75 0.0 106 106 106 +0 13 Rock Aloe 5 53.0 13 9.00 0.0 96 101 101 +5 14 Guru's Pride 5 52.0 14 11.25 0.0 87 99 99 +12 15 Find Me Unafraid 4 53.5 15 11.50 2.5 97 97 97 +0 16 Aqua Delta 5 54.0 16 16.25 0.0 97 103 103 +6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Native Tongue | 105 | 105 | 105 | ✓ Match | 2.5 | - | |
| 2 | Grazinginthegrass Line | 98 | 111 | 98 | +13 | 2.5 | ||
| 3 | My Bestie | 98 | 61 | 108 | -47 | 0.0 | - | |
| 4 | Cat Daddy | 100 | 98 | 111 | -13 | 0.0 | - | |
| 5 | Blingking | 94 | 90 | 96 | -6 | 2.5 | - | |
| 6 | Marmara Sea | 110 | 101 | 116 | -15 | 0.0 | - | |
| 7 | Herodotus | 91 | 102 | 100 | +2 | 0.0 | - | |
| 8 | Greenlighttoheaven | 91 | 83 | 95 | -12 | 2.5 | - | |
| 9 | Oscar Wilde | 104 | 95 | 109 | -14 | 0.0 | - | |
| 10 | Jaeger Moon | 100 | 97 | 105 | -8 | 0.0 | - | |
| 11 | Blackball | 106 | 100 | 111 | -11 | 0.0 | - | |
| 12 | Carioca | 106 | 105 | 106 | -1 | 0.0 | - | |
| 13 | Rock Aloe | 96 | 93 | 101 | -8 | 0.0 | - | |
| 14 | Guru's Pride | 87 | 70 | 99 | -29 | 0.0 | - | |
| 15 | Find Me Unafraid | 97 | 85 | 97 | -12 | 2.5 | - | |
| 16 | Aqua Delta | 97 | 95 | 103 | -8 | 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