Official NHA Assessment

Race 2: GTH 50/50 DASH MR 77 HANDICAP (Open)

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Line Horse
Hooves Of Troy
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 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    Dandolo              4    59.5    1    0.00     12.0  76    52           76    +0
2    Hooves Of Troy       5    60.5    2    2.80     0.0   78    78           78    +0
3    Justaguything        5    60.0    3    4.40     0.0   77    77           77    +0
4    Valiente             5    55.5    4    5.30     0.0   68    68           68    +0
5    Hampton Court        7    56.5    5    5.90     0.0   70    70           70    +0
6    Blue Eyes            4    54.5    6    8.00     12.0  66    42           56    -10
99   Pacific Winter       5    53.0    99   0.00     0.0   -     63           63    +0
99   Purple Powahouse     8    58.0    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dandolo 76 86 76 +10 12.0 -
2 Hooves Of Troy Line 78 87 78 +9 0.0
3 Justaguything 77 87 77 +10 0.0 -
4 Valiente 68 75 68 +7 0.0 -
5 Hampton Court 70 70 70 ✓ Match 0.0 -
6 Blue Eyes 66 56 56 ✓ Match 12.0 -
99 Pacific Winter - 60 63 -3 0.0 -
99 Purple Powahouse - 55 73 -18 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