Official NHA Assessment
Race 3: wsb.co.za MAIDEN PLATE (For all Maidens)
Line Horse
Metallic Gold
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
1 / 16
Within 2 points
Significant Diffs
14 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Metallic Gold 3 60.0 1 0.00 3.0 66 66 66 +0 2 American Dream 3 60.0 2 1.20 3.0 - 66 66 +66 3 Phaka Imali 3 60.0 3 1.45 3.0 63 66 66 +3 4 Parmenion 5 57.0 4 2.05 0.0 - 66 66 +66 5 Captain Casey 2 57.0 5 3.05 2.0 - 62 62 +62 6 Sewelo 3 58.5 6 5.05 3.0 57 63 63 +6 7 Arabian Wylie 3 60.0 7 5.10 3.0 55 66 66 +11 8 Creator 3 60.0 8 5.90 3.0 56 66 66 +10 9 Sun Blushed 2 53.0 9 7.90 2.0 - 54 54 +54 10 Lombard Street 3 60.0 10 9.00 3.0 - 66 66 +66 11 His Master's Voice 2 57.0 11 9.40 2.0 - 62 62 +62 12 Tothelefttotheleft 3 56.0 12 10.20 3.0 46 58 58 +12 13 Pongola 5 57.0 13 13.20 0.0 - 66 66 +66 14 Cannatonic 3 60.0 14 15.00 3.0 - 66 66 +66 99 Haal Uit En Wys 3 60.0 99 0.00 3.0 - 66 66 +0 99 Star Rated 3 58.5 99 0.00 3.0 - 63 63 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Metallic Gold Line | 66 | 75 | 66 | +9 | 3.0 | ||
| 2 | American Dream | - | 81 | 66 | +15 | 3.0 | - | |
| 3 | Phaka Imali | 63 | 62 | 66 | -4 | 3.0 | - | |
| 4 | Parmenion | - | 78 | 66 | +12 | 0.0 | - | |
| 5 | Captain Casey | - | 96 | 62 | +34 | 2.0 | - | |
| 6 | Sewelo | 57 | 45 | 63 | -18 | 3.0 | - | |
| 7 | Arabian Wylie | 55 | 48 | 66 | -18 | 3.0 | - | |
| 8 | Creator | 56 | 46 | 66 | -20 | 3.0 | - | |
| 9 | Sun Blushed | - | 120 | 54 | +66 | 2.0 | - | |
| 10 | Lombard Street | - | 48 | 66 | -18 | 3.0 | - | |
| 11 | His Master's Voice | - | 69 | 62 | +7 | 2.0 | - | |
| 12 | Tothelefttotheleft | 46 | 49 | 58 | -9 | 3.0 | - | |
| 13 | Pongola | - | 66 | 66 | ✓ Match | 0.0 | - | |
| 14 | Cannatonic | - | 48 | 66 | -18 | 3.0 | - | |
| 99 | Haal Uit En Wys | - | 52 | 66 | -14 | 3.0 | - | |
| 99 | Star Rated | - | 38 | 63 | -25 | 3.0 | - |
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