Official NHA Assessment
Race 3: BETWAY AVIATOR MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)
Line Horse
Together Again
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Circus Lights 5 60.0 1 0.00 0.0 66 58 58 -8 2 Inafix 4 58.0 2 1.50 11.0 - 32 32 +32 3 Empress Game 3 57.5 3 3.00 9.5 68 34 58 -10 4 Presley 4 58.0 4 4.30 11.0 - 32 32 +32 5 Together Again 5 57.5 5 4.70 0.0 53 53 53 +0 6 Griffin Park 4 58.0 6 5.80 11.0 - 32 32 +32 7 Sebastian's Angel 2 55.5 7 7.00 6.5 69 36 59 -10 8 Sky On Fire 4 58.0 8 12.00 11.0 - 32 32 +32 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Circus Lights | 66 | 64 | 58 | +6 | 0.0 | - | |
| 2 | Inafix | - | 69 | 32 | +37 | 11.0 | - | |
| 3 | Empress Game | 68 | 61 | 58 | +3 | 9.5 | - | |
| 4 | Presley | - | 90 | 32 | +58 | 11.0 | - | |
| 5 | Together Again Line | 53 | 55 | 53 | +2 | 0.0 | ||
| 6 | Griffin Park | - | 58 | 32 | +26 | 11.0 | - | |
| 7 | Sebastian's Angel | 69 | 52 | 59 | -7 | 6.5 | - | |
| 8 | Sky On Fire | - | 60 | 32 | +28 | 11.0 | - |
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