Official NHA Assessment
Race 4: OPEN A TABGOLD ACCOUNT - 031 314 1874 MAIDEN PLATE (For all Maidens)
Line Horse
Power Star
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Trusova 2 56.0 1 0.00 0.0 - 63 6 +6 2 Power Star 2 58.5 2 0.40 0.0 73 73 73 +0 3 Imaginable 3 60.0 3 2.10 1.5 - 71 71 +71 4 Reach Forthe Stars 5 60.0 4 4.40 0.0 68 71 71 +3 5 Flaming Drum 3 60.0 5 4.45 1.5 70 68 68 -2 6 Gijima Mfana 6 60.0 6 7.15 0.0 55 71 71 +16 7 Dance To The Music 3 60.0 7 7.30 1.5 - 68 68 +68 8 Thisiswhatitmeans 4 56.0 8 7.80 0.5 - 62 62 +62 9 Zin Zan Dan 2 54.5 9 12.00 0.0 - 60 60 +60 10 His Master's Voice 2 60.0 10 13.70 0.0 70 71 71 +1 99 Player X 2 56.0 99 0.00 0.0 - 63 63 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Trusova | - | 78 | 6 | +72 | 0.0 | - | |
| 2 | Power Star Line | 73 | 58 | 73 | -15 | 0.0 | ||
| 3 | Imaginable | - | 92 | 71 | +21 | 1.5 | - | |
| 4 | Reach Forthe Stars | 68 | 56 | 71 | -15 | 0.0 | - | |
| 5 | Flaming Drum | 70 | 50 | 68 | -18 | 1.5 | - | |
| 6 | Gijima Mfana | 55 | 50 | 71 | -21 | 0.0 | - | |
| 7 | Dance To The Music | - | 61 | 68 | -7 | 1.5 | - | |
| 8 | Thisiswhatitmeans | - | 106 | 62 | +44 | 0.5 | - | |
| 9 | Zin Zan Dan | - | 64 | 60 | +4 | 0.0 | - | |
| 10 | His Master's Voice | 70 | 69 | 71 | -2 | 0.0 | - | |
| 99 | Player X | - | 65 | 63 | +2 | 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