Official NHA Assessment
Race 2: ALGOA CUP 28 OCTOBER 2022 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
St Patrick's Day
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 Graphene Aerogel 3 60.0 1 0.00 9.0 59 36 36 -23 2 Colour Coded 3 60.0 2 0.75 9.0 47 42 42 -5 3 St Patrick's Day 4 60.0 3 2.25 5.0 49 49 49 +0 4 Antonia Augusta 2 57.0 4 4.75 0.0 54 48 48 -6 5 Polly Flinders 2 57.0 5 8.75 0.0 52 48 48 -4 6 Montana Nymph 2 57.0 6 11.50 0.0 63 48 53 -10 7 Cassowary 3 60.0 7 11.60 9.0 42 36 36 -6 8 Claregari 2 57.0 8 11.70 0.0 46 48 48 +2 9 Marmellata 3 57.0 9 15.20 9.0 - 30 30 +30 10 Herewegojo 4 60.0 10 19.20 5.0 47 44 44 -3 99 I'm In Love 3 60.0 99 0.00 9.0 - 36 36 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Graphene Aerogel | 59 | 59 | 36 | +23 | 9.0 | - | |
| 2 | Colour Coded | 47 | 54 | 42 | +12 | 9.0 | - | |
| 3 | St Patrick's Day Line | 49 | 42 | 49 | -7 | 5.0 | ||
| 4 | Antonia Augusta | 54 | 57 | 48 | +9 | 0.0 | - | |
| 5 | Polly Flinders | 52 | 50 | 48 | +2 | 0.0 | - | |
| 6 | Montana Nymph | 63 | 57 | 53 | +4 | 0.0 | - | |
| 7 | Cassowary | 42 | 37 | 36 | +1 | 9.0 | - | |
| 8 | Claregari | 46 | 42 | 48 | -6 | 0.0 | - | |
| 9 | Marmellata | - | - | 30 | -30 | 9.0 | - | |
| 10 | Herewegojo | 47 | 35 | 44 | -9 | 5.0 | - | |
| 99 | I'm In Love | - | 63 | 36 | +27 | 9.0 | - |
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