Official NHA Assessment
Race 4: GALLOP FORM MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Siyabambelela
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
13 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Past Is Prologue 3 60.0 1 0.00 4.5 - 1 1 +1 2 Peach Melba 3 60.0 2 0.90 4.5 - 1 1 +1 3 Siyabambelela 4 60.0 3 2.50 5.0 - - - +0 4 Luthando 3 60.0 4 3.20 4.5 - 1 1 +1 5 Kali Bwana 2 60.0 5 3.40 3.0 78 4 68 -10 6 Vaans Spirit 3 60.0 6 6.20 4.5 - 1 1 +1 7 Alakazam 2 57.5 7 8.40 3.0 68 -1 58 -10 8 Lovecomesknocking 3 60.0 8 8.90 4.5 - 1 1 +1 9 Red Secret 3 60.0 9 11.30 4.5 67 1 57 -10 10 Pizazz 3 60.0 10 12.20 4.5 64 1 54 -10 11 Quandura 3 57.5 11 13.20 4.5 - -4 - +0 12 Bella Magic 3 60.0 12 15.70 4.5 - 1 1 +1 13 Shiras Star 3 58.5 13 20.50 4.5 - -2 - +0 99 Cartel Queen 2 60.0 99 0.00 3.0 - 4 4 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Past Is Prologue | - | 81 | 1 | +80 | 4.5 | - | |
| 2 | Peach Melba | - | 78 | 1 | +77 | 4.5 | - | |
| 3 | Siyabambelela Line | - | 68 | - | +68 | 5.0 | ||
| 4 | Luthando | - | 78 | 1 | +77 | 4.5 | - | |
| 5 | Kali Bwana | 78 | 77 | 68 | +9 | 3.0 | - | |
| 6 | Vaans Spirit | - | 74 | 1 | +73 | 4.5 | - | |
| 7 | Alakazam | 68 | 65 | 58 | +7 | 3.0 | - | |
| 8 | Lovecomesknocking | - | 64 | 1 | +63 | 4.5 | - | |
| 9 | Red Secret | 67 | 59 | 57 | +2 | 4.5 | - | |
| 10 | Pizazz | 64 | 62 | 54 | +8 | 4.5 | - | |
| 11 | Quandura | - | 63 | - | +63 | 4.5 | - | |
| 12 | Bella Magic | - | 44 | 1 | +43 | 4.5 | - | |
| 13 | Shiras Star | - | 56 | - | +56 | 4.5 | - | |
| 99 | Cartel Queen | - | 66 | 4 | +62 | 3.0 | - |
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