Official NHA Assessment
Race 2: BETWAY TOTE REWARDS CLUB MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
Perform
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Antananarivo 4 60.0 1 0.00 6.0 56 46 46 -10 2 Perform 2 60.0 2 3.75 0.0 59 59 59 +0 3 Mount Etna 4 56.0 3 4.75 6.0 66 38 56 -10 4 Martinique 2 56.0 4 5.25 0.0 54 50 50 -4 5 All Rise 3 60.0 5 7.50 9.5 55 39 45 -10 6 Bomber Grigio 3 60.0 6 7.75 9.5 49 39 39 -10 7 Arabian Red 4 56.0 7 9.25 6.0 - 38 38 +38 8 Duellona 2 56.0 8 9.75 0.0 68 50 58 -10 9 Dame Colleen 3 60.0 9 32.00 9.5 41 39 39 -2 99 Paradise Flower 3 60.0 99 0.00 9.5 - 39 39 +0 99 City Lights 4 56.0 99 0.00 6.0 - 38 38 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Antananarivo | 56 | 57 | 46 | +11 | 6.0 | - | |
| 2 | Perform Line | 59 | 54 | 59 | -5 | 0.0 | ||
| 3 | Mount Etna | 66 | 79 | 56 | +23 | 6.0 | - | |
| 4 | Martinique | 54 | 66 | 50 | +16 | 0.0 | - | |
| 5 | All Rise | 55 | 50 | 45 | +5 | 9.5 | - | |
| 6 | Bomber Grigio | 49 | 42 | 39 | +3 | 9.5 | - | |
| 7 | Arabian Red | - | 74 | 38 | +36 | 6.0 | - | |
| 8 | Duellona | 68 | 58 | 58 | ✓ Match | 0.0 | - | |
| 9 | Dame Colleen | 41 | 46 | 39 | +7 | 9.5 | - | |
| 99 | Paradise Flower | - | 37 | 39 | -2 | 9.5 | - | |
| 99 | City Lights | - | 52 | 38 | +14 | 6.0 | - |
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