Official NHA Assessment

Race 5: 4RACING.TV FM 65 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Badrah (AUS)
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
7 / 12
Within 2 points
Significant Diffs
3 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Colorama             6    53.5    1    0.00     0.0   52    49           52    +0
2    Iqembulabesifazane   3    56.0    2    0.75     0.5   57    57           57    +0
3    Badrah (AUS)         4    55.5    3    1.25     0.5   56    56           56    +0
4    Defining Moment      2    60.0    4    1.30     0.0   67    65           65    -2
5    Meredith Grey        2    56.5    5    2.55     0.0   60    57           57    -3
6    Nkalanzinzi          3    53.0    6    3.30     0.5   50    48           48    -2
7    Silver Slippers      3    60.0    7    3.55     0.5   65    62           62    -3
8    Teardrop             2    58.5    8    3.65     0.0   64    60           60    -4
9    Ray Flambe           2    58.5    9    4.90     0.0   64    59           59    -5
10   Moonstrike           3    54.5    10   5.15     0.5   54    50           50    -4
11   Open Secret          2    59.0    11   9.15     0.0   65    60           60    -5
12   Errols Legacy        2    58.0    12   9.25     0.0   79    58           69    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Colorama 52 54 52 +2 0.0 -
2 Iqembulabesifazane 57 65 57 +8 0.5 -
3 Badrah (AUS) Line 56 56 56 ✓ Match 0.5
4 Defining Moment 67 64 65 -1 0.0 -
5 Meredith Grey 60 68 57 +11 0.0 -
6 Nkalanzinzi 50 50 48 +2 0.5 -
7 Silver Slippers 65 63 62 +1 0.5 -
8 Teardrop 64 55 60 -5 0.0 -
9 Ray Flambe 64 58 59 -1 0.0 -
10 Moonstrike 54 50 50 ✓ Match 0.5 -
11 Open Secret 65 63 60 +3 0.0 -
12 Errols Legacy 79 80 69 +11 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