Official NHA Assessment

Race 4: COMPUTAFORM ONLINE MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Afraad
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
8 / 13
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    Motown Magic         3    54.0    1    0.00     6.0   85    63           63    -22
2    Black Thorn          4    58.0    2    3.50     3.0   87    79           79    -8
3    She's A Cracker      5    51.5    3    4.25     0.0   76    72           72    -4
4    Afraad               8    54.5    4    4.75     0.0   76    76           76    +0
5    Juan Carlos          7    58.0    5    4.80     0.0   86    83           83    -3
6    Un Deux Trois        4    55.5    6    4.85     3.0   85    72           75    -10
7    Barak                5    56.0    7    5.00     0.0   80    79           79    -1
8    Traveling Wilbury    4    54.0    8    7.50     3.0   83    69           73    -10
9    Madabout Fashion     3    49.5    9    8.50     6.0   80    54           70    -10
10   Castle Durrow        4    53.5    10   13.00    3.0   80    68           70    -10
11   Before Noon          7    60.0    11   17.00    0.0   91    87           87    -4
12   Ballet Shoes         5    57.5    12   18.50    0.0   90    82           82    -8
13   Wylie The Great      5    50.0    13   23.00    0.0   53    67           67    +14
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Motown Magic 85 75 63 +12 6.0 -
2 Black Thorn 87 102 79 +23 3.0 -
3 She's A Cracker 76 73 72 +1 0.0 -
4 Afraad Line 76 79 76 +3 0.0
5 Juan Carlos 86 93 83 +10 0.0 -
6 Un Deux Trois 85 84 75 +9 3.0 -
7 Barak 80 97 79 +18 0.0 -
8 Traveling Wilbury 83 80 73 +7 3.0 -
9 Madabout Fashion 80 72 70 +2 6.0 -
10 Castle Durrow 80 71 70 +1 3.0 -
11 Before Noon 91 88 87 +1 0.0 -
12 Ballet Shoes 90 90 82 +8 0.0 -
13 Wylie The Great 53 50 67 -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