Official NHA Assessment

Race 4: RACING TODAY MAIDEN PLATE (For all Maidens)

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Line Horse
Busstopinhounslow
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 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    Force De Dieu        3    60.0    1    0.00     9.0   65    89           71    +6
2    Busstopinhounslow    3    57.0    2    4.60     9.0   83    83           83    +0
3    Blue Crystal         3    57.0    3    7.30     9.0   -     83           83    +83
4    Kaleesh Cyborg       2    57.0    4    7.70     0.0   -     101          101   +101
5    Jaham                3    57.0    5    9.20     9.0   -     83           83    +83
6    Dwight Eisenhower    2    57.0    6    11.00    0.0   -     101          101   +101
7    Dragon Dragon        3    54.5    7    16.30    9.0   63    78           78    +15
99   Livebythesword       2    57.5    99   0.00     0.0   -     102          102   +0
99   Chieftain's Shield   4    60.0    99   0.00     7.0   -     93           93    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Force De Dieu 65 64 71 -7 9.0 -
2 Busstopinhounslow Line 83 110 83 +27 9.0
3 Blue Crystal - 51 83 -32 9.0 -
4 Kaleesh Cyborg - 75 101 -26 0.0 -
5 Jaham - 89 83 +6 9.0 -
6 Dwight Eisenhower - 80 101 -21 0.0 -
7 Dragon Dragon 63 58 78 -20 9.0 -
99 Livebythesword - 59 102 -43 0.0 -
99 Chieftain's Shield - 80 93 -13 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