Official NHA Assessment
Race 8: HOLLYWOODBETS MATCHEM STAKES (Grade 3) (Open at Weight For Age + Penalties)
Line Horse
Royal Aussie
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Charles Dickens 2 59.5 1 0.00 0.0 132 122 122 -10 2 Gimme A Prince 3 60.0 2 0.30 7.0 130 114 120 -10 3 Royal Aussie 2 56.5 3 2.30 0.0 118 118 118 +0 4 After The Rain 4 57.0 4 3.30 4.5 104 109 109 +5 5 Cosmic Highway 3 57.0 5 4.80 7.0 108 103 103 -5 6 Runaway Song 6 58.0 6 5.55 0.0 116 119 119 +3 7 Bright Green 2 56.5 7 12.80 0.0 101 116 116 +15 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Charles Dickens | 132 | 132 | 122 | +10 | 0.0 | - | |
| 2 | Gimme A Prince | 130 | 134 | 120 | +14 | 7.0 | - | |
| 3 | Royal Aussie Line | 118 | 120 | 118 | +2 | 0.0 | ||
| 4 | After The Rain | 104 | 98 | 109 | -11 | 4.5 | - | |
| 5 | Cosmic Highway | 108 | 115 | 103 | +12 | 7.0 | - | |
| 6 | Runaway Song | 116 | 98 | 119 | -21 | 0.0 | - | |
| 7 | Bright Green | 101 | 76 | 116 | -40 | 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