Official NHA Assessment
Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
The Reason
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Umami 3 60.0 1 0.00 2.5 55 70 61 +6 2 The Reason 3 60.0 2 2.25 2.5 73 73 73 +0 3 In Between 3 60.0 3 2.45 2.5 65 72 72 +7 4 Beautiful One 2 60.0 4 12.75 0.0 69 75 75 +6 5 E Famous 3 58.5 5 25.00 2.5 37 67 67 +30 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Umami | 55 | 66 | 61 | +5 | 2.5 | - | |
| 2 | The Reason Line | 73 | 70 | 73 | -3 | 2.5 | ||
| 3 | In Between | 65 | 69 | 72 | -3 | 2.5 | - | |
| 4 | Beautiful One | 69 | 69 | 75 | -6 | 0.0 | - | |
| 5 | E Famous | 37 | 37 | 67 | -30 | 2.5 | - |
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