Official NHA Assessment

Race 4: COROBRIK CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Blackberry Breeze
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
6 / 11
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    Arverni King         5    60.5    1    0.00     0.0   81    82           82    +1
2    Blackberry Breeze    4    56.5    2    2.80     2.0   73    73           73    +0
3    Kadizora             4    57.0    3    3.20     2.0   74    74           74    +0
4    Riccardo             7    59.5    4    4.40     0.0   79    81           81    +2
5    Qondanekukhanyeni    3    48.5    5    4.90     4.5   74    49           64    -10
6    Duke Of Africa       5    59.5    6    4.95     0.0   79    80           80    +1
7    Banzai Pipeline      7    55.0    7    5.45     0.0   70    71           71    +1
8    National Dream       6    54.0    8    5.55     0.0   68    69           69    +1
9    Lucretius            6    55.5    9    11.45    0.0   71    72           72    +1
10   Hot Strike           7    55.0    10   14.65    0.0   70    71           71    +1
99   Jp's Palace          3    59.5    99   0.00     4.5   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Arverni King 81 86 82 +4 0.0 -
2 Blackberry Breeze Line 73 71 73 -2 2.0
3 Kadizora 74 72 74 -2 2.0 -
4 Riccardo 79 68 81 -13 0.0 -
5 Qondanekukhanyeni 74 70 64 +6 4.5 -
6 Duke Of Africa 79 76 80 -4 0.0 -
7 Banzai Pipeline 70 62 71 -9 0.0 -
8 National Dream 68 68 69 -1 0.0 -
9 Lucretius 71 64 72 -8 0.0 -
10 Hot Strike 70 59 71 -12 0.0 -
99 Jp's Palace - 93 71 +22 4.5 -
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