Official NHA Assessment

Race 3: TAKING THE REINS CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 78)

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Line Horse
Glee Club
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 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    Kamakazi             4    58.0    1    0.00     0.5   78    74           74    -4
2    Glee Club            2    58.5    2    1.75     0.0   79    79           79    +0
3    Enchanting Choice    4    60.0    3    2.50     0.5   82    80           80    -2
4    Ice Rain             4    60.5    4    4.00     0.5   83    80           80    -3
5    Queen Bomi           4    52.0    5    4.05     0.5   62    63           63    +1
6    Flight Display       2    53.5    6    4.25     0.0   69    67           67    -2
7    Three Coins          2    58.5    7    4.65     0.0   79    76           76    -3
8    Tokyo Princess       2    58.5    8    7.40     0.0   79    76           76    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kamakazi 78 73 74 -1 0.5 -
2 Glee Club Line 79 76 79 -3 0.0
3 Enchanting Choice 82 99 80 +19 0.5 -
4 Ice Rain 83 101 80 +21 0.5 -
5 Queen Bomi 62 58 63 -5 0.5 -
6 Flight Display 69 81 67 +14 0.0 -
7 Three Coins 79 76 76 ✓ Match 0.0 -
8 Tokyo Princess 79 67 76 -9 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