Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST MAIDEN PLATE (For all Maidens)

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Line Horse
Duke Of Africa
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 9
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    Duke Of Africa       5    60.0    1    0.00     0.0   69    69           69    +0
2    Johnny The Thief     2    56.0    2    0.30     0.0   82    68           72    -10
3    Excalibur Calls      2    56.0    3    1.60     0.0   57    66           66    +9
4    King Bavarian        5    60.0    4    2.00     0.0   66    74           74    +8
5    The Green Gallant    6    60.0    5    3.50     0.0   60    72           72    +12
6    Tiger Spring         2    58.5    6    10.80    0.0   63    66           66    +3
7    Mighty Rain          3    60.0    7    12.20    10.0  56    49           49    -7
8    Kintamani            2    56.0    8    27.20    0.0   -     61           61    +61
99   Olympic Standard     3    56.0    99   0.00     10.0  -     41           41    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Duke Of Africa Line 69 76 69 +7 0.0
2 Johnny The Thief 82 95 72 +23 0.0 -
3 Excalibur Calls 57 62 66 -4 0.0 -
4 King Bavarian 66 67 74 -7 0.0 -
5 The Green Gallant 60 55 72 -17 0.0 -
6 Tiger Spring 63 57 66 -9 0.0 -
7 Mighty Rain 56 46 49 -3 10.0 -
8 Kintamani - 40 61 -21 0.0 -
99 Olympic Standard - 53 41 +12 10.0 -
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