Official NHA Assessment

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

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Line Horse
Amandla Ngawethu
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
7 / 12
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    Palace Attack        2    57.0    1    0.00     0.0   79    81           81    +2
2    Beach Walker         2    53.0    2    0.70     0.0   -     78           78    +78
3    Bellerophon          3    57.0    3    3.00     8.5   -     66           66    +66
4    Frere Jacques        3    60.0    4    3.30     8.5   -     71           71    +71
5    Amandla Ngawethu     3    60.0    5    4.70     8.5   70    70           70    +0
6    King Bluetooth       2    57.0    6    6.80     0.0   56    81           81    +25
7    Trip To States       5    60.0    7    12.60    0.0   61    87           87    +26
8    Mystic Vision        3    60.0    8    13.60    8.5   70    70           70    +0
9    Talkoftheheights     2    57.0    9    17.40    0.0   65    81           81    +16
10   River Kitten         3    56.0    10   17.50    8.5   61    62           62    +1
11   Civil War            3    53.0    11   30.25    8.5   -     56           56    +56
99   King Of Silk         3    55.5    99   0.00     8.5   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Palace Attack 79 86 81 +5 0.0 -
2 Beach Walker - 75 78 -3 0.0 -
3 Bellerophon - 89 66 +23 8.5 -
4 Frere Jacques - 76 71 +5 8.5 -
5 Amandla Ngawethu Line 70 72 70 +2 8.5
6 King Bluetooth 56 53 81 -28 0.0 -
7 Trip To States 61 63 87 -24 0.0 -
8 Mystic Vision 70 66 70 -4 8.5 -
9 Talkoftheheights 65 52 81 -29 0.0 -
10 River Kitten 61 50 62 -12 8.5 -
11 Civil War - - 56 -56 8.5 -
99 King Of Silk - 68 61 +7 8.5 -
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