Official NHA Assessment

Race 6: CRS SUMMER SALE CLASS 3 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 96)

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Line Horse
Fun Zone
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
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    Gimmethatpearl       3    58.5    1    0.00     6.0   87    70           70    -17
2    Callmegetrix         4    59.5    2    0.30     3.5   89    82           82    -7
3    Fun Zone             5    58.5    3    0.70     0.0   87    87           87    +0
4    Trip To Maputo       2    58.5    4    1.70     0.0   87    85           85    -2
5    Fatal Gem            4    60.0    5    1.90     3.5   90    81           81    -9
6    My Flower Fate       3    58.5    6    2.65     6.0   87    72           77    -10
7    Easy Living          2    57.5    7    3.40     0.0   85    81           81    -4
8    School Policy        2    59.5    8    3.80     0.0   89    85           85    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimmethatpearl 87 98 70 +28 6.0 -
2 Callmegetrix 89 113 82 +31 3.5 -
3 Fun Zone Line 87 96 87 +9 0.0
4 Trip To Maputo 87 96 85 +11 0.0 -
5 Fatal Gem 90 91 81 +10 3.5 -
6 My Flower Fate 87 86 77 +9 6.0 -
7 Easy Living 85 52 81 -29 0.0 -
8 School Policy 89 79 85 -6 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