Official NHA Assessment
Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
Unyielding
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
11 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Writteninthesand 3 60.0 1 0.00 3.0 67 60 60 -7 2 Dame Colleen 3 60.0 2 3.00 3.0 48 62 62 +14 3 Southern Style 5 60.0 3 3.50 0.0 61 67 67 +6 4 Unyielding 2 60.0 4 3.75 0.0 67 67 67 +0 5 Elusive Fire 4 60.0 5 5.85 1.5 51 63 63 +12 6 Leahlicious 3 60.0 6 9.35 3.0 - 60 60 +60 7 Cilantro 3 60.0 7 10.10 3.0 62 60 60 -2 8 Wow 2 60.0 8 11.70 0.0 70 66 66 -4 9 Eurydice 2 60.0 9 12.30 0.0 48 66 66 +18 10 Together Again 5 60.0 10 14.30 0.0 56 66 66 +10 11 Kungfoo Lightning 2 60.0 11 19.55 0.0 48 66 66 +18 12 Three Bells 3 60.0 12 28.00 3.0 47 60 60 +13 13 Double Joy 2 60.0 13 30.00 0.0 64 66 66 +2 14 Efficient Trader 2 60.0 14 99.97 0.0 65 66 66 +1 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Writteninthesand | 67 | 57 | 60 | -3 | 3.0 | - | |
| 2 | Dame Colleen | 48 | 46 | 62 | -16 | 3.0 | - | |
| 3 | Southern Style | 61 | 54 | 67 | -13 | 0.0 | - | |
| 4 | Unyielding Line | 67 | 88 | 67 | +21 | 0.0 | ||
| 5 | Elusive Fire | 51 | 63 | 63 | ✓ Match | 1.5 | - | |
| 6 | Leahlicious | - | 42 | 60 | -18 | 3.0 | - | |
| 7 | Cilantro | 62 | 54 | 60 | -6 | 3.0 | - | |
| 8 | Wow | 70 | 70 | 66 | +4 | 0.0 | - | |
| 9 | Eurydice | 48 | 48 | 66 | -18 | 0.0 | - | |
| 10 | Together Again | 56 | 55 | 66 | -11 | 0.0 | - | |
| 11 | Kungfoo Lightning | 48 | 38 | 66 | -28 | 0.0 | - | |
| 12 | Three Bells | 47 | 43 | 60 | -17 | 3.0 | - | |
| 13 | Double Joy | 64 | 44 | 66 | -22 | 0.0 | - | |
| 14 | Efficient Trader | 65 | 57 | 66 | -9 | 0.0 | - |
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