Official NHA Assessment
Race 8: NEXT VAAL RACEMEETING THURSDAY 17 NOVEMBER WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Memorial Day
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
10 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Nyali Beach 2 58.0 1 0.00 0.0 - 72 6 +6 2 Last Wild One 3 58.0 2 0.25 7.0 - 58 58 +58 3 Memorial Day 2 58.0 3 2.00 0.0 75 75 75 +0 4 I Am Who I Am 2 58.0 4 5.50 0.0 66 72 72 +6 5 London Paladium 3 58.0 5 6.25 7.0 - 58 58 +58 6 Lady Zultanite 3 58.0 6 6.75 7.0 - 58 58 +58 7 Elusive Fire 4 60.0 7 7.00 4.0 - 68 68 +68 8 Alice May 3 58.0 8 9.00 7.0 - 58 58 +58 9 Rowins Dream 5 58.0 9 11.25 0.0 63 72 72 +9 10 Queen Theodora 4 60.0 10 11.75 4.0 63 68 68 +5 11 Alabama Storm 2 58.0 11 12.25 0.0 - 72 72 +72 12 Raising A Storm 4 60.0 12 31.00 4.0 50 68 68 +18 13 Mapule 2 58.0 13 32.00 0.0 50 72 72 +22 99 Tree Fairy 3 58.0 99 0.00 7.0 - 58 58 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Nyali Beach | - | 70 | 6 | +64 | 0.0 | - | |
| 2 | Last Wild One | - | 78 | 58 | +20 | 7.0 | - | |
| 3 | Memorial Day Line | 75 | 49 | 75 | -26 | 0.0 | ||
| 4 | I Am Who I Am | 66 | 64 | 72 | -8 | 0.0 | - | |
| 5 | London Paladium | - | 59 | 58 | +1 | 7.0 | - | |
| 6 | Lady Zultanite | - | 66 | 58 | +8 | 7.0 | - | |
| 7 | Elusive Fire | - | 63 | 68 | -5 | 4.0 | - | |
| 8 | Alice May | - | 60 | 58 | +2 | 7.0 | - | |
| 9 | Rowins Dream | 63 | 48 | 72 | -24 | 0.0 | - | |
| 10 | Queen Theodora | 63 | 56 | 68 | -12 | 4.0 | - | |
| 11 | Alabama Storm | - | 47 | 72 | -25 | 0.0 | - | |
| 12 | Raising A Storm | 50 | 43 | 68 | -25 | 4.0 | - | |
| 13 | Mapule | 50 | 49 | 72 | -23 | 0.0 | - | |
| 99 | Tree Fairy | - | 54 | 58 | -4 | 7.0 | - |
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