Official NHA Assessment

Race 2: 4RACING.TV OPEN MAIDEN (For Maiden)

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Line Horse
House Of Sussex
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 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    King's Sailor        3    56.0    1    0.00     8.5   74    52           52    -22
2    Coral Creek          3    60.0    2    2.50     8.5   -     62           62    +62
3    Bryden Bay           2    55.5    3    3.75     0.0   57    69           69    +12
4    House Of Sussex      4    56.0    4    3.85     6.0   58    58           58    +0
5    Golden Gallant       2    58.0    5    5.35     0.0   78    73           73    -5
6    Mad World            3    53.5    6    5.85     8.5   55    47           47    -8
7    Stormstride          3    53.0    7    19.10    8.5   36    46           46    +10
99   Lennoxtown           2    60.0    99   0.00     0.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King's Sailor 74 67 52 +15 8.5 -
2 Coral Creek - 73 62 +11 8.5 -
3 Bryden Bay 57 63 69 -6 0.0 -
4 House Of Sussex Line 58 50 58 -8 6.0
5 Golden Gallant 78 77 73 +4 0.0 -
6 Mad World 55 53 47 +6 8.5 -
7 Stormstride 36 54 46 +8 8.5 -
99 Lennoxtown - 72 77 -5 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