Official NHA Assessment
Race 3: PREMIER YEARLING SALE CATALOGUE NOW ONLINE MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Piteraq
Reference for assessment
Exact Matches
3 / 17
Calculated = Official
Close Matches
6 / 17
Within 2 points
Significant Diffs
9 / 17
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Seven No Trump 2 60.0 1 0.00 3.5 76 74 74 -2 2 Cantona 3 56.0 2 0.50 5.0 - 63 63 +63 3 Hazel Green 2 60.0 3 0.80 3.5 80 74 74 -6 4 Piteraq 2 60.0 4 2.30 3.5 74 74 74 +0 5 Swift Serenity 2 60.0 5 2.70 3.5 76 74 74 -2 6 Winter In Auckland 2 60.0 6 3.10 3.5 72 74 74 +2 7 Late Bloomer 2 60.0 7 3.85 3.5 66 74 74 +8 8 Fantine 3 60.0 8 3.90 5.0 74 71 71 -3 9 Blue Dame 3 60.0 9 4.20 5.0 - 71 71 +71 10 Pennys Choice 2 58.5 10 5.95 3.5 71 71 71 +0 11 April Fools' Day 3 60.0 11 6.15 5.0 - 71 71 +71 12 Chihiro 2 60.0 12 6.45 3.5 - 74 74 +74 13 Before Sunrise 3 60.0 13 7.45 5.0 - 71 71 +71 14 Wedding Vow 2 60.0 14 12.45 3.5 69 74 74 +5 99 Divine State 3 60.0 99 0.00 5.0 - 71 71 +0 99 Arkansas State 3 60.0 99 0.00 5.0 - 71 71 +0 99 Mon Papillon 3 60.0 99 0.00 5.0 - 71 71 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Seven No Trump | 76 | 83 | 74 | +9 | 3.5 | - | |
| 2 | Cantona | - | 77 | 63 | +14 | 5.0 | - | |
| 3 | Hazel Green | 80 | 74 | 74 | ✓ Match | 3.5 | - | |
| 4 | Piteraq Line | 74 | 73 | 74 | -1 | 3.5 | ||
| 5 | Swift Serenity | 76 | 74 | 74 | ✓ Match | 3.5 | - | |
| 6 | Winter In Auckland | 72 | 74 | 74 | ✓ Match | 3.5 | - | |
| 7 | Late Bloomer | 66 | 70 | 74 | -4 | 3.5 | - | |
| 8 | Fantine | 74 | 70 | 71 | -1 | 5.0 | - | |
| 9 | Blue Dame | - | 70 | 71 | -1 | 5.0 | - | |
| 10 | Pennys Choice | 71 | 65 | 71 | -6 | 3.5 | - | |
| 11 | April Fools' Day | - | 78 | 71 | +7 | 5.0 | - | |
| 12 | Chihiro | - | 60 | 74 | -14 | 3.5 | - | |
| 13 | Before Sunrise | - | 74 | 71 | +3 | 5.0 | - | |
| 14 | Wedding Vow | 69 | 66 | 74 | -8 | 3.5 | - | |
| 99 | Divine State | - | 62 | 71 | -9 | 5.0 | - | |
| 99 | Arkansas State | - | 48 | 71 | -23 | 5.0 | - | |
| 99 | Mon Papillon | - | - | 71 | -71 | 5.0 | - |
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