Official NHA Assessment
Race 2: WSB.CO.ZA MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)
Line Horse
Jaipur Jewel
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
1 / 16
Within 2 points
Significant Diffs
12 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Tattenham Hill 3 60.0 1 0.00 2.0 - 68 6 +6 2 Jaipur Jewel 3 60.0 2 1.00 2.0 72 72 72 +0 3 Vengeance Forever 3 60.0 3 1.75 2.0 73 71 71 -2 4 Climate Control 2 56.0 4 2.00 0.0 - 67 67 +67 5 Forward Spell 3 60.0 5 2.75 2.0 73 70 70 -3 6 Sea Of Galilee 3 60.0 6 2.80 2.0 68 70 70 +2 7 Equestrian Affair 2 56.0 7 4.00 0.0 - 65 65 +65 8 Free Wylie 4 60.0 8 5.75 1.0 - 70 70 +70 9 Kuznetsov 2 56.0 9 6.50 0.0 - 64 64 +64 10 Edge Of Winter 3 60.0 10 7.25 2.0 60 68 68 +8 11 Equerry 3 58.5 11 9.00 2.0 40 65 65 +25 12 Alabaster 3 60.0 12 9.25 2.0 67 68 68 +1 13 Chasing Cheetahs 3 60.0 13 16.00 2.0 60 68 68 +8 14 Grand Destiny 3 58.5 14 21.00 2.0 66 65 65 -1 99 Stolen Thunder 3 58.5 99 0.00 2.0 - 65 65 +0 99 Takagari 4 60.0 99 0.00 1.0 - 70 70 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Tattenham Hill | - | 79 | 6 | +73 | 2.0 | - | |
| 2 | Jaipur Jewel Line | 72 | 68 | 72 | -4 | 2.0 | ||
| 3 | Vengeance Forever | 73 | 51 | 71 | -20 | 2.0 | - | |
| 4 | Climate Control | - | 65 | 67 | -2 | 0.0 | - | |
| 5 | Forward Spell | 73 | 64 | 70 | -6 | 2.0 | - | |
| 6 | Sea Of Galilee | 68 | 61 | 70 | -9 | 2.0 | - | |
| 7 | Equestrian Affair | - | 78 | 65 | +13 | 0.0 | - | |
| 8 | Free Wylie | - | 57 | 70 | -13 | 1.0 | - | |
| 9 | Kuznetsov | - | 61 | 64 | -3 | 0.0 | - | |
| 10 | Edge Of Winter | 60 | 60 | 68 | -8 | 2.0 | - | |
| 11 | Equerry | 40 | 50 | 65 | -15 | 2.0 | - | |
| 12 | Alabaster | 67 | 53 | 68 | -15 | 2.0 | - | |
| 13 | Chasing Cheetahs | 60 | 58 | 68 | -10 | 2.0 | - | |
| 14 | Grand Destiny | 66 | 55 | 65 | -10 | 2.0 | - | |
| 99 | Stolen Thunder | - | 69 | 65 | +4 | 2.0 | - | |
| 99 | Takagari | - | 50 | 70 | -20 | 1.0 | - |
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