Official NHA Assessment
Race 3: FILTER-TECH MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)
Line Horse
Island Master
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Petteia 2 60.0 1 0.00 0.0 66 68 68 +2 2 Portcullis 3 60.0 2 2.50 1.5 61 69 69 +8 3 Island Master 3 60.0 3 3.50 1.5 68 68 68 +0 4 Fearless Badger 4 60.0 4 4.00 0.5 60 69 69 +9 5 Belle's First Wave 3 60.0 5 4.10 1.5 53 67 67 +14 6 Take A Mulligan 4 60.0 6 8.60 0.5 68 67 67 -1 7 Mister Miyagi 3 58.5 7 11.85 1.5 50 62 62 +12 8 Pantador 2 56.0 8 21.10 0.0 40 60 60 +20 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Petteia | 66 | 50 | 68 | -18 | 0.0 | - | |
| 2 | Portcullis | 61 | 63 | 69 | -6 | 1.5 | - | |
| 3 | Island Master Line | 68 | 67 | 68 | -1 | 1.5 | ||
| 4 | Fearless Badger | 60 | 58 | 69 | -11 | 0.5 | - | |
| 5 | Belle's First Wave | 53 | 51 | 67 | -16 | 1.5 | - | |
| 6 | Take A Mulligan | 68 | 50 | 67 | -17 | 0.5 | - | |
| 7 | Mister Miyagi | 50 | 44 | 62 | -18 | 1.5 | - | |
| 8 | Pantador | 40 | 40 | 60 | -20 | 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