Official NHA Assessment
Race 3: #THISISRACING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Silver Slippers
Reference for assessment
Exact Matches
3 / 16
Calculated = Official
Close Matches
5 / 16
Within 2 points
Significant Diffs
7 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Hot To Trot 3 60.0 1 0.00 2.0 60 60 60 +0 2 Tracy's Princess 3 60.0 2 1.25 2.0 63 64 64 +1 3 Silver Slippers 3 60.0 3 2.25 2.0 63 63 63 +0 4 Sugar Snap 3 60.0 4 2.50 2.0 61 62 62 +1 5 Iqembulabesifazane 3 58.5 5 2.60 2.0 54 59 59 +5 6 Klaserie 3 60.0 6 4.85 2.0 64 60 60 -4 7 Rose Of Mine 3 60.0 7 5.35 2.0 61 60 60 -1 8 Babyitscoldoutside 3 60.0 8 5.45 2.0 58 60 60 +2 9 Ladonna Mia 3 60.0 9 7.20 2.0 60 60 60 +0 10 Black Peppercorn 3 60.0 10 7.30 2.0 53 60 60 +7 11 Helencanucope 3 58.5 11 9.55 2.0 45 57 57 +12 12 Magenta 4 60.0 12 11.80 1.0 40 62 62 +22 13 Mezzyoona 4 60.0 13 11.90 1.0 39 62 62 +23 14 Miss Glamour 3 60.0 14 37.40 2.0 36 60 60 +24 99 Jungle Promise 3 60.0 99 0.00 2.0 - 60 60 +0 99 Cape Diamond 4 60.0 99 0.00 1.0 - 62 62 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Hot To Trot | 60 | 67 | 60 | +7 | 2.0 | - | |
| 2 | Tracy's Princess | 63 | 64 | 64 | ✓ Match | 2.0 | - | |
| 3 | Silver Slippers Line | 63 | 63 | 63 | ✓ Match | 2.0 | ||
| 4 | Sugar Snap | 61 | 59 | 62 | -3 | 2.0 | - | |
| 5 | Iqembulabesifazane | 54 | 65 | 59 | +6 | 2.0 | - | |
| 6 | Klaserie | 64 | 57 | 60 | -3 | 2.0 | - | |
| 7 | Rose Of Mine | 61 | 58 | 60 | -2 | 2.0 | - | |
| 8 | Babyitscoldoutside | 58 | 56 | 60 | -4 | 2.0 | - | |
| 9 | Ladonna Mia | 60 | 59 | 60 | -1 | 2.0 | - | |
| 10 | Black Peppercorn | 53 | 52 | 60 | -8 | 2.0 | - | |
| 11 | Helencanucope | 45 | 45 | 57 | -12 | 2.0 | - | |
| 12 | Magenta | 40 | 59 | 62 | -3 | 1.0 | - | |
| 13 | Mezzyoona | 39 | 39 | 62 | -23 | 1.0 | - | |
| 14 | Miss Glamour | 36 | 30 | 60 | -30 | 2.0 | - | |
| 99 | Jungle Promise | - | 60 | 60 | ✓ Match | 2.0 | - | |
| 99 | Cape Diamond | - | 50 | 62 | -12 | 1.0 | - |
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