Official NHA Assessment

Race 5: PERFECTLY PLACED C STAKES (For All Horses with a nett rating of 83 & below)

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Line Horse
Kwite A King
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 10
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    Ariovistus           3    57.0    1    0.00     2.0   73    60           60    -13
2    Ahead Of The Facts   3    64.0    2    0.75     2.0   83    80           80    -3
3    Wood World           3    60.0    3    1.25     2.0   78    72           72    -6
4    Kwite A King         4    64.0    4    2.25     1.0   81    81           81    +0
5    Repetition           3    58.5    5    2.75     2.0   74    66           66    -8
6    Heliotrope           3    57.5    6    3.25     2.0   74    64           64    -10
7    Jet A One            2    57.0    7    4.00     0.0   72    66           66    -6
8    Tothemoonandback     5    57.0    8    4.05     0.0   68    66           66    -2
9    Noble Hero           3    60.0    9    8.30     2.0   78    66           68    -10
10   Professor Snape      2    61.5    10   11.80    0.0   76    73           73    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ariovistus 73 80 60 +20 2.0 -
2 Ahead Of The Facts 83 110 80 +30 2.0 -
3 Wood World 78 74 72 +2 2.0 -
4 Kwite A King Line 81 79 81 -2 1.0
5 Repetition 74 74 66 +8 2.0 -
6 Heliotrope 74 67 64 +3 2.0 -
7 Jet A One 72 69 66 +3 0.0 -
8 Tothemoonandback 68 69 66 +3 0.0 -
9 Noble Hero 78 78 68 +10 2.0 -
10 Professor Snape 76 68 73 -5 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