Official NHA Assessment
Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
Silky Jet
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Higgledy Piggledy 3 60.0 1 0.00 4.0 72 70 70 -2 2 Rainbow River 3 60.0 2 2.70 4.0 69 72 72 +3 3 Superskitt 2 60.0 3 3.00 0.0 66 80 80 +14 4 Silky Jet 4 60.0 4 5.50 2.0 74 74 74 +0 5 Gold Agent 2 60.0 5 8.00 0.0 75 78 78 +3 6 Vathomvlaffie 2 60.0 6 8.75 0.0 67 78 78 +11 7 Liberty Flag 2 60.0 7 9.60 0.0 62 78 78 +16 8 Arabian Red 4 60.0 8 9.85 2.0 71 74 74 +3 9 Bees And Honey 2 60.0 9 16.25 0.0 54 78 78 +24 10 The Navy Lark 4 60.0 10 19.50 2.0 57 74 74 +17 99 Quiet Strength 3 60.0 99 0.00 4.0 - 70 70 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Higgledy Piggledy | 72 | 74 | 70 | +4 | 4.0 | - | |
| 2 | Rainbow River | 69 | 66 | 72 | -6 | 4.0 | - | |
| 3 | Superskitt | 66 | 59 | 80 | -21 | 0.0 | - | |
| 4 | Silky Jet Line | 74 | 61 | 74 | -13 | 2.0 | ||
| 5 | Gold Agent | 75 | 64 | 78 | -14 | 0.0 | - | |
| 6 | Vathomvlaffie | 67 | 56 | 78 | -22 | 0.0 | - | |
| 7 | Liberty Flag | 62 | 59 | 78 | -19 | 0.0 | - | |
| 8 | Arabian Red | 71 | 74 | 74 | ✓ Match | 2.0 | - | |
| 9 | Bees And Honey | 54 | 54 | 78 | -24 | 0.0 | - | |
| 10 | The Navy Lark | 57 | 74 | 74 | ✓ Match | 2.0 | - | |
| 99 | Quiet Strength | - | - | 70 | -70 | 4.0 | - |
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