Official NHA Assessment

Race 2: EQUINA PROGRESS PLATE (For Maidens & 1,2 & 3 time winners)

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Line Horse
Royal Lytham
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
4 / 6
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    Whereverilaymyhat    4    57.0    1    0.00     5.0   54    58           58    +4
2    Royal Lytham         4    60.0    2    10.00    5.0   64    64           64    +0
3    Audacious            2    57.5    3    14.00    3.0   62    63           63    +1
4    Queen Of Fire        3    60.0    4    14.50    4.5   73    65           65    -8
5    Ziwewere             2    60.0    5    0.00     3.0   -     68           68    +0
99   Chili Bomb           3    59.5    99   0.00     4.5   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Whereverilaymyhat 54 68 58 +10 5.0 -
2 Royal Lytham Line 64 69 64 +5 5.0
3 Audacious 62 61 63 -2 3.0 -
4 Queen Of Fire 73 71 65 +6 4.5 -
5 Ziwewere - 77 68 +9 3.0 -
99 Chili Bomb - 76 64 +12 4.5 -
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