Official NHA Assessment
Race 5: PREMIERS CHAMPION STAKES (Grade 1) (For 2 year-olds)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 17
Calculated = Official
Close Matches
0 / 17
Within 2 points
Significant Diffs
14 / 17
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Cousin Casey 2 60.0 1 0.00 0.0 - - - +0 2 Royal Victory 5 60.0 2 2.10 0.0 - - - +0 3 Quantum Theory 5 60.0 3 2.50 0.0 - - - +0 4 Prophet 2 60.0 4 3.70 0.0 - - - +0 5 Now I Got You 5 60.0 5 4.20 0.0 - - - +0 6 Superior Force 2 60.0 6 4.40 0.0 - - - +0 7 Grinkov 2 60.0 7 4.55 0.0 - - - +0 8 Laguna Verde 5 60.0 8 4.75 0.0 - - - +0 9 Golden Prospect 2 60.0 9 5.80 0.0 - - - +0 10 River Queraress 2 57.5 10 6.70 0.0 - - - +0 11 Acorn 2 60.0 11 8.10 0.0 - - - +0 12 Billy Bowlegs 5 60.0 12 8.30 0.0 - - - +0 13 Countdown 2 60.0 13 11.30 0.0 - - - +0 14 Mover And Shaker 5 60.0 14 11.80 0.0 - - - +0 99 Wiccan Warrior 2 60.0 99 0.00 0.0 - - - +0 99 Eyjafjallajokull 2 60.0 99 0.00 0.0 - - - +0 99 Raffles 2 60.0 99 0.00 0.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Cousin Casey | - | 125 | - | +125 | 0.0 | - | |
| 2 | Royal Victory | - | 124 | - | +124 | 0.0 | - | |
| 3 | Quantum Theory | - | 112 | - | +112 | 0.0 | - | |
| 4 | Prophet | - | 66 | - | +66 | 0.0 | - | |
| 5 | Now I Got You | - | 67 | - | +67 | 0.0 | - | |
| 6 | Superior Force | - | 104 | - | +104 | 0.0 | - | |
| 7 | Grinkov | - | 87 | - | +87 | 0.0 | - | |
| 8 | Laguna Verde | - | 86 | - | +86 | 0.0 | - | |
| 9 | Golden Prospect | - | 83 | - | +83 | 0.0 | - | |
| 10 | River Queraress | - | 88 | - | +88 | 0.0 | - | |
| 11 | Acorn | - | 89 | - | +89 | 0.0 | - | |
| 12 | Billy Bowlegs | - | 104 | - | +104 | 0.0 | - | |
| 13 | Countdown | - | 106 | - | +106 | 0.0 | - | |
| 14 | Mover And Shaker | - | 109 | - | +109 | 0.0 | - | |
| 99 | Wiccan Warrior | - | 80 | - | - | 0.0 | - | |
| 99 | Eyjafjallajokull | - | 86 | - | - | 0.0 | - | |
| 99 | Raffles | - | 105 | - | - | 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