Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Ringho
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 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    Nou Praat Jy         3    58.0    1    0.00     9.5   -     61           6     +6
2    Pivotal Role         3    58.0    2    1.25     9.5   -     61           61    +61
3    Hammer Blow          3    58.0    3    1.95     9.5   -     61           61    +61
4    Ringho               4    60.0    4    3.70     11.0  62    62           62    +0
5    Legal Flame          3    58.0    5    3.80     9.5   -     61           61    +61
6    Gold Platina         2    54.0    6    4.80     6.5   -     59           59    +59
7    Scott's Guard        2    58.0    7    16.00    6.5   -     67           67    +67
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nou Praat Jy - 81 6 +75 9.5 -
2 Pivotal Role - 87 61 +26 9.5 -
3 Hammer Blow - 74 61 +13 9.5 -
4 Ringho Line 62 60 62 -2 11.0
5 Legal Flame - 66 61 +5 9.5 -
6 Gold Platina - 58 59 -1 6.5 -
7 Scott's Guard - 63 67 -4 6.5 -
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