Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Amanatto
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 10
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Intro                3    60.0    1    0.00     5.0   62    58           58    -4
2    Amanatto             3    60.0    2    3.50     5.0   59    59           59    +0
3    Salagadoola          2    59.0    3    5.25     0.0   64    66           66    +2
4    Red Lhasa            2    55.0    4    5.50     0.0   72    58           62    -10
5    Matts Rocket         2    59.0    5    7.00     0.0   63    66           66    +3
6    Oh Mandy             3    60.0    6    8.25     5.0   62    58           58    -4
7    Touch The Sword      3    59.0    7    8.50     5.0   71    56           61    -10
8    Am Still Winning     3    56.0    8    11.25    5.0   59    50           50    -9
9    Canford's Beauty     3    60.0    9    12.50    5.0   55    58           58    +3
10   Manuriki             2    59.0    10   35.75    0.0   59    66           66    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Intro 62 66 58 +8 5.0 -
2 Amanatto Line 59 64 59 +5 5.0
3 Salagadoola 64 66 66 ✓ Match 0.0 -
4 Red Lhasa 72 63 62 +1 0.0 -
5 Matts Rocket 63 57 66 -9 0.0 -
6 Oh Mandy 62 64 58 +6 5.0 -
7 Touch The Sword 71 64 61 +3 5.0 -
8 Am Still Winning 59 51 50 +1 5.0 -
9 Canford's Beauty 55 51 58 -7 5.0 -
10 Manuriki 59 52 66 -14 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. 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