Official NHA Assessment

Race 3: RACING TODAY GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)

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Line Horse
Bristol Hercules
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Speedman             3    60.0    1    0.00     4.0   88    75           75    -13
2    Bristol Hercules     2    60.0    2    0.90     0.0   87    87           87    +0
3    Quickfreeze          3    60.0    3    2.65     4.0   91    77           81    -10
4    Spring Tradition     3    58.0    4    3.15     4.0   84    73           74    -10
5    Golden Operator      2    57.0    5    3.25     0.0   87    79           79    -8
6    Deception Pass       4    55.5    6    6.35     2.0   77    70           70    -7
7    Itsnowornever        5    55.0    7    13.75    0.0   60    73           73    +13
99   Believe In Fate      2    55.5    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Speedman 88 102 75 +27 4.0 -
2 Bristol Hercules Line 87 87 87 ✓ Match 0.0
3 Quickfreeze 91 91 81 +10 4.0 -
4 Spring Tradition 84 81 74 +7 4.0 -
5 Golden Operator 87 87 79 +8 0.0 -
6 Deception Pass 77 77 70 +7 2.0 -
7 Itsnowornever 60 64 73 -9 0.0 -
99 Believe In Fate - 85 74 +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