Official NHA Assessment

Race 4: OFF THE RAILS MAIDEN PLATE (For all Maidens)

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Line Horse
Majestic Reign
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
4 / 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    Captain Corrupt      2    60.0    1    0.00     0.0   69    78           75    +6
2    Paris Rain           3    60.0    2    0.05     3.0   73    72           72    -1
3    Madison Blues        3    60.0    3    0.10     3.0   78    72           72    -6
4    Majestic Reign       3    60.0    4    1.50     3.0   75    75           75    +0
5    Gijima Mfana         6    60.0    5    2.60     0.0   48    80           80    +32
6    Kodiak Island        3    60.0    6    6.90     3.0   -     72           72    +72
7    Du Cane              2    60.0    7    8.90     0.0   -     78           78    +78
8    Uncle Lucky          2    60.0    8    12.40    0.0   68    78           78    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Corrupt 69 73 75 -2 0.0 -
2 Paris Rain 73 70 72 -2 3.0 -
3 Madison Blues 78 70 72 -2 3.0 -
4 Majestic Reign Line 75 75 75 ✓ Match 3.0
5 Gijima Mfana 48 50 80 -30 0.0 -
6 Kodiak Island - 58 72 -14 3.0 -
7 Du Cane - 45 78 -33 0.0 -
8 Uncle Lucky 68 61 78 -17 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