Official NHA Assessment

Race 6: POUND BLOODSTOCK MR 73 HANDICAP (Open)

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Line Horse
Allaroundtheworld (GB)
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 9
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    African Dusk         5    58.5    1    0.00     0.0   73    88           73    +0
2    Nightjar             3    57.0    2    0.60     9.5   69    71           71    +2
3    Global Movement      6    57.0    3    3.60     0.0   67    86           86    +19
4    Allaroundtheworld (  3    58.0    4    4.20     9.5   69    69           69    +0
5    Duke Of Africa       5    56.5    5    4.60     0.0   66    84           84    +18
6    Faire Advantage      3    57.0    6    5.90     9.5   67    66           66    -1
6    Hiawatha Goldberg    2    59.5    6    5.90     0.0   74    90           90    +16
8    Tom's Act            3    56.0    8    7.10     9.5   65    64           64    -1
9    Ladies World         3    57.0    9    8.60     9.5   86    66           76    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 African Dusk 73 83 73 +10 0.0 -
2 Nightjar 69 67 71 -4 9.5 -
3 Global Movement 67 65 86 -21 0.0 -
4 Allaroundtheworld (GB) Line 69 73 69 +4 9.5
5 Duke Of Africa 66 76 84 -8 0.0 -
6 Faire Advantage 67 71 66 +5 9.5 -
6 Hiawatha Goldberg 74 57 90 -33 0.0 -
8 Tom's Act 65 64 64 ✓ Match 9.5 -
9 Ladies World 86 79 76 +3 9.5 -
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