Official NHA Assessment

Race 3: GOLD CIRCLE RACING YOUTUBE CHANNEL MAIDEN PLATE (For all Maidens)

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Line Horse
Natyam
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Jazz Festival        5    59.0    1    0.00     0.0   68    -4           -     -68
2    Natyam               5    59.0    2    1.05     0.0   -     -            -     +0
3    Uncle Lucky          2    59.0    3    2.65     0.0   63    -2           53    -10
4    Alfatorio            3    59.0    4    5.95     5.0   69    -14          59    -10
5    Arsene Lupin         3    59.0    5    6.65     5.0   -     -14          -     +0
6    Gijima Mfana         6    60.0    6    8.75     0.0   48    -2           38    -10
7    Cash Crusade         2    56.5    7    10.75    0.0   64    -9           54    -10
99   Paris Rain           3    59.0    99   0.00     5.0   -     -14          -14   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jazz Festival 68 70 - +70 0.0 -
2 Natyam Line - 102 - +102 0.0
3 Uncle Lucky 63 61 53 +8 0.0 -
4 Alfatorio 69 65 59 +6 5.0 -
5 Arsene Lupin - 44 - +44 5.0 -
6 Gijima Mfana 48 50 38 +12 0.0 -
7 Cash Crusade 64 68 54 +14 0.0 -
99 Paris Rain - 70 -14 +84 5.0 -
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