Official NHA Assessment
Race 2: TAB TELEBET 0861 000 822 OPEN MAIDEN (For all Maidens)
Line Horse
Come On You Spurs
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Erimitage 4 60.0 1 0.00 7.0 64 49 49 -15 2 Donny's Boy 3 55.5 2 2.00 9.0 72 39 62 -10 3 Sundrop 6 53.0 3 3.25 0.0 50 51 51 +1 4 Come On You Spurs 2 57.5 4 3.35 0.0 59 59 59 +0 5 Home Reef 3 59.0 5 3.85 9.0 - 44 44 +44 6 Mayor Of Merrivale 2 59.0 6 4.85 0.0 61 61 61 +0 7 Dirty Mimosa 2 53.0 7 9.60 0.0 67 49 57 -10 8 Natural Wonder 3 51.0 8 14.60 9.0 58 27 48 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Erimitage | 64 | 62 | 49 | +13 | 7.0 | - | |
| 2 | Donny's Boy | 72 | 68 | 62 | +6 | 9.0 | - | |
| 3 | Sundrop | 50 | 48 | 51 | -3 | 0.0 | - | |
| 4 | Come On You Spurs Line | 59 | 51 | 59 | -8 | 0.0 | ||
| 5 | Home Reef | - | 87 | 44 | +43 | 9.0 | - | |
| 6 | Mayor Of Merrivale | 61 | 59 | 61 | -2 | 0.0 | - | |
| 7 | Dirty Mimosa | 67 | 56 | 57 | -1 | 0.0 | - | |
| 8 | Natural Wonder | 58 | 55 | 48 | +7 | 9.0 | - |
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