Official NHA Assessment
Race 4: OPEN A tabGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Global Secret
Reference for assessment
Exact Matches
3 / 18
Calculated = Official
Close Matches
4 / 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 Queen Mercury 4 60.0 1 0.00 5.0 62 65 65 +3 2 Global Secret 3 60.0 2 1.50 4.5 66 66 66 +0 3 Green Sleeves 3 58.5 3 3.20 4.5 66 63 63 -3 4 Sky Cafe 3 60.0 4 3.90 4.5 69 66 66 -3 5 Venturous 3 60.0 5 4.20 4.5 57 66 66 +9 6 Edvige 3 60.0 6 5.70 4.5 - 66 66 +66 7 Star Aglow 3 60.0 7 6.80 4.5 72 66 66 -6 8 Vision Of Will 3 60.0 8 7.00 4.5 68 66 66 -2 9 Declare War 3 60.0 9 7.50 4.5 - 66 66 +66 10 Reginas Angel 4 60.0 10 7.80 5.0 57 65 65 +8 11 Capriana 4 57.5 11 9.90 5.0 56 60 60 +4 12 Autumn Spirit 3 60.0 12 10.65 4.5 - 66 66 +66 13 Deltron Energy 3 60.0 13 10.75 4.5 - 66 66 +66 14 Wallstreet Duchess 4 60.0 14 18.55 5.0 - 65 65 +65 15 Zkittles 4 56.0 15 18.85 5.0 28 57 57 +29 16 Addiena 3 60.0 16 21.75 4.5 - 66 66 +66 99 African Tune 4 60.0 99 0.00 5.0 - 65 65 +0 99 La Campanella 3 60.0 99 0.00 4.5 - 66 66 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Queen Mercury | 62 | 56 | 65 | -9 | 5.0 | - | |
| 2 | Global Secret Line | 66 | 66 | 66 | ✓ Match | 4.5 | ||
| 3 | Green Sleeves | 66 | 56 | 63 | -7 | 4.5 | - | |
| 4 | Sky Cafe | 69 | 58 | 66 | -8 | 4.5 | - | |
| 5 | Venturous | 57 | 66 | 66 | ✓ Match | 4.5 | - | |
| 6 | Edvige | - | 50 | 66 | -16 | 4.5 | - | |
| 7 | Star Aglow | 72 | 74 | 66 | +8 | 4.5 | - | |
| 8 | Vision Of Will | 68 | 66 | 66 | ✓ Match | 4.5 | - | |
| 9 | Declare War | - | 49 | 66 | -17 | 4.5 | - | |
| 10 | Reginas Angel | 57 | 49 | 65 | -16 | 5.0 | - | |
| 11 | Capriana | 56 | 59 | 60 | -1 | 5.0 | - | |
| 12 | Autumn Spirit | - | 53 | 66 | -13 | 4.5 | - | |
| 13 | Deltron Energy | - | 48 | 66 | -18 | 4.5 | - | |
| 14 | Wallstreet Duchess | - | - | 65 | -65 | 5.0 | - | |
| 15 | Zkittles | 28 | 22 | 57 | -35 | 5.0 | - | |
| 16 | Addiena | - | 83 | 66 | +17 | 4.5 | - | |
| 99 | African Tune | - | 60 | 65 | -5 | 5.0 | - | |
| 99 | La Campanella | - | - | 66 | -66 | 4.5 | - |
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