Official NHA Assessment

Race 4: MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Wantage
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 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    Wantage              8    60.0    1    0.00     0.0   92    92           92    +0
2    Only Him             4    60.0    2    0.25     3.0   92    86           86    -6
3    Heir Line            8    56.0    3    0.75     0.0   81    88           88    +7
4    True Beauty          4    51.0    4    1.50     3.0   88    71           78    -10
5    Armstrong            6    60.0    5    2.50     0.0   91    94           94    +3
6    Bugatti Blue         7    60.0    6    4.00     0.0   90    93           93    +3
7    Edward The Seventh   7    60.0    7    21.00    0.0   89    92           92    +3
8    Fareeq (AUS)         9    60.0    8    26.00    0.0   91    92           92    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Wantage Line 92 78 92 -14 0.0
2 Only Him 92 87 86 +1 3.0 -
3 Heir Line 81 81 88 -7 0.0 -
4 True Beauty 88 99 78 +21 3.0 -
5 Armstrong 91 89 94 -5 0.0 -
6 Bugatti Blue 90 87 93 -6 0.0 -
7 Edward The Seventh (ZIM) 89 85 92 -7 0.0 -
8 Fareeq (AUS) 91 93 92 +1 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