Official NHA Assessment

Race 1: JOIN THE MTC MERIT RATED 69 HANDICAP (Open)

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Line Horse
Battle Of Seattle
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
1 / 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    Whereverilaymyhat    4    56.5    1    0.00     4.0   62    59           62    +0
2    Battle Of Seattle    2    55.0    2    5.00     2.5   59    59           59    +0
3    Captain Carnage      2    52.5    3    5.10     2.5   59    54           54    -5
4    Copper Fire          3    56.0    4    6.60     3.5   61    59           59    -2
5    Royal Lytham         4    60.0    5    7.35     4.0   69    66           66    -3
6    Audacious            2    56.5    6    7.60     2.5   62    62           62    +0
7    Coccolina            3    59.0    7    14.60    3.5   67    65           65    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Whereverilaymyhat 62 68 62 +6 4.0 -
2 Battle Of Seattle Line 59 59 59 ✓ Match 2.5
3 Captain Carnage 59 59 54 +5 2.5 -
4 Copper Fire 61 60 59 +1 3.5 -
5 Royal Lytham 69 69 66 +3 4.0 -
6 Audacious 62 61 62 -1 2.5 -
7 Coccolina 67 67 65 +2 3.5 -
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