Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY WORK RIDERS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)
Line Horse
Greenlight Express
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
2 / 16
Within 2 points
Significant Diffs
14 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Greenlight Express 3 60.0 1 0.00 5.0 70 70 70 +0 2 Seeking The Life 2 60.0 2 1.00 3.5 57 73 73 +16 3 Hat Man 4 60.0 3 1.50 6.0 55 68 68 +13 4 Bompas 4 60.0 4 2.50 6.0 55 68 68 +13 5 Velvet Valour 3 60.0 5 3.25 5.0 67 70 70 +3 6 War Of Hearts 3 60.0 6 8.75 5.0 61 70 70 +9 7 Opera Verse 4 57.5 7 11.25 6.0 53 63 63 +10 8 Extraction 2 57.5 8 12.75 3.5 73 68 68 -5 9 Natural Wonder 3 57.5 9 13.50 5.0 50 65 65 +15 10 Top Dollar 5 60.5 10 14.00 0.0 51 81 81 +30 11 Summer Heat 3 57.5 11 14.50 5.0 56 65 65 +9 12 Hiersdieding 2 60.0 12 16.00 3.5 45 73 73 +28 13 Heart Of Thieves 4 60.0 13 16.75 6.0 45 68 68 +23 14 Man Of Steel 6 60.0 14 18.00 0.0 - 80 80 +80 99 Like A Butterfly 3 57.5 99 0.00 5.0 - 65 65 +0 99 Feel The Wind 2 57.5 99 0.00 3.5 - 68 68 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Greenlight Express Line | 70 | 68 | 70 | -2 | 5.0 | ||
| 2 | Seeking The Life | 57 | 60 | 73 | -13 | 3.5 | - | |
| 3 | Hat Man | 55 | 60 | 68 | -8 | 6.0 | - | |
| 4 | Bompas | 55 | 58 | 68 | -10 | 6.0 | - | |
| 5 | Velvet Valour | 67 | 60 | 70 | -10 | 5.0 | - | |
| 6 | War Of Hearts | 61 | 52 | 70 | -18 | 5.0 | - | |
| 7 | Opera Verse | 53 | 50 | 63 | -13 | 6.0 | - | |
| 8 | Extraction | 73 | 54 | 68 | -14 | 3.5 | - | |
| 9 | Natural Wonder | 50 | 55 | 65 | -10 | 5.0 | - | |
| 10 | Top Dollar | 51 | 42 | 81 | -39 | 0.0 | - | |
| 11 | Summer Heat | 56 | 47 | 65 | -18 | 5.0 | - | |
| 12 | Hiersdieding | 45 | 42 | 73 | -31 | 3.5 | - | |
| 13 | Heart Of Thieves | 45 | 45 | 68 | -23 | 6.0 | - | |
| 14 | Man Of Steel | - | 25 | 80 | -55 | 0.0 | - | |
| 99 | Like A Butterfly | - | 54 | 65 | -11 | 5.0 | - | |
| 99 | Feel The Wind | - | 67 | 68 | -1 | 3.5 | - |
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