Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MR 73 HANDICAP (Open)

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Line Horse
Chabal
Reference for assessment
Exact Matches
2 / 6
Calculated = Official
Close Matches
3 / 6
Within 2 points
Significant Diffs
1 / 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    We Are The Logans    2    60.0    1    0.00     0.0   73    82           73    +0
2    Chabal               3    59.0    2    4.00     4.5   73    73           73    +0
3    Circle Of Grace      4    49.5    3    4.50     1.5   51    59           59    +8
4    Pomozelous           3    54.5    4    16.50    4.5   62    62           62    +0
99   Euphrates            3    57.5    99   0.00     4.5   -     68           68    +0
99   Vixeninthevineyard   2    54.5    99   0.00     0.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 We Are The Logans 73 78 73 +5 0.0 -
2 Chabal Line 73 73 73 ✓ Match 4.5
3 Circle Of Grace 51 54 59 -5 1.5 -
4 Pomozelous 62 62 62 ✓ Match 4.5 -
99 Euphrates - 70 68 +2 4.5 -
99 Vixeninthevineyard - 62 71 -9 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