Official NHA Assessment
Race 3: WWW.TAB4RACING.COM MAIDEN PLATE (For all Maidens)
Line Horse
Big Five
Reference for assessment
Exact Matches
1 / 15
Calculated = Official
Close Matches
2 / 15
Within 2 points
Significant Diffs
9 / 15
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Just Eminent 3 58.0 1 0.00 8.0 - 53 6 +6 2 Stella Et Clavis 2 58.0 2 1.75 0.0 60 72 72 +12 3 World's Best 3 58.0 3 2.00 8.0 - 56 56 +56 4 Big Five 3 60.0 4 2.75 8.0 59 59 59 +0 5 Insightful 3 58.0 5 3.00 8.0 - 55 55 +55 6 Raven Black 2 58.0 6 3.20 0.0 - 71 71 +71 7 Sky Runner 3 60.0 7 5.20 8.0 38 57 57 +19 8 Northern King 3 58.0 8 5.25 8.0 - 53 53 +53 9 Roll Over Redrover 4 60.0 9 7.25 5.0 - 63 63 +63 10 Hearts Thunder 4 60.0 10 10.50 5.0 - 63 63 +63 11 Kite Surfer 2 58.0 11 10.75 0.0 61 69 69 +8 12 All Black Captain 3 58.0 12 11.00 8.0 - 53 53 +53 99 To The King 3 58.0 99 0.00 8.0 - 53 53 +0 99 Stepping Out 2 58.0 99 0.00 0.0 - 69 69 +0 99 Celtic Rush 5 58.0 99 0.00 0.0 - 69 69 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Just Eminent | - | 60 | 6 | +54 | 8.0 | - | |
| 2 | Stella Et Clavis | 60 | 64 | 72 | -8 | 0.0 | - | |
| 3 | World's Best | - | 87 | 56 | +31 | 8.0 | - | |
| 4 | Big Five Line | 59 | 53 | 59 | -6 | 8.0 | ||
| 5 | Insightful | - | 60 | 55 | +5 | 8.0 | - | |
| 6 | Raven Black | - | 99 | 71 | +28 | 0.0 | - | |
| 7 | Sky Runner | 38 | 42 | 57 | -15 | 8.0 | - | |
| 8 | Northern King | - | 57 | 53 | +4 | 8.0 | - | |
| 9 | Roll Over Redrover | - | 79 | 63 | +16 | 5.0 | - | |
| 10 | Hearts Thunder | - | 66 | 63 | +3 | 5.0 | - | |
| 11 | Kite Surfer | 61 | 57 | 69 | -12 | 0.0 | - | |
| 12 | All Black Captain | - | 55 | 53 | +2 | 8.0 | - | |
| 99 | To The King | - | 66 | 53 | +13 | 8.0 | - | |
| 99 | Stepping Out | - | 74 | 69 | +5 | 0.0 | - | |
| 99 | Celtic Rush | - | 69 | 69 | ✓ Match | 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