Official NHA Assessment

Race 5: PRESTIGE PLATE (For 3-year-old Filllies. Non-Black Type)

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Line Horse
Beach Bomb
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Royals               2    58.0    1    0.00     0.0   90    90           90    +0
2    Beach Bomb           2    60.0    2    1.00     0.0   98    98           98    +0
3    Summer Lily          2    58.0    3    1.40     0.0   89    93           93    +4
4    Secret Identity      2    60.0    4    4.90     0.0   98    94           94    -4
5    Canford Rose         2    58.0    5    13.90    0.0   82    90           90    +8
99   Rascova              2    60.0    99   0.00     0.0   -     94           94    +0
99   Gimmethatpearl       3    58.0    99   0.00     7.0   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royals 90 94 90 +4 0.0 -
2 Beach Bomb Line 98 117 98 +19 0.0
3 Summer Lily 89 99 93 +6 0.0 -
4 Secret Identity 98 108 94 +14 0.0 -
5 Canford Rose 82 64 90 -26 0.0 -
99 Rascova - 122 94 +28 0.0 -
99 Gimmethatpearl - 98 76 +22 7.0 -
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