Official NHA Assessment

Race 7: CASTLE TANKARD GRADE 1 (Open/5th leg Open Series)

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Line Horse
Wantage
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
6 / 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    Raffles              2    58.0    1    0.00     0.0   99    96           96    -3
2    Majestic Warrior     2    52.0    2    3.00     0.0   75    87           87    +12
3    Wantage              8    54.5    3    3.10     0.0   92    92           92    +0
4    Ideal View           6    59.0    4    3.85     0.0   101   100          100   -1
5    Holy Land            6    58.5    5    4.35     0.0   100   98           98    -2
6    Admirals Chance      5    52.0    6    6.10     0.0   87    84           84    -3
7    Raining Again        6    52.0    7    6.60     0.0   85    84           84    -1
8    Tradition            4    52.0    8    6.65     1.0   84    82           82    -2
9    Jacky Sparrow        3    52.0    9    9.15     2.5   79    79           79    +0
10   Citrusdal            8    55.0    10   10.80    0.0   93    90           90    -3
11   Brianna              4    60.0    11   11.05    1.0   103   98           98    -5
99   Dindingwe            4    56.0    99   0.00     1.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raffles 99 105 96 +9 0.0 -
2 Majestic Warrior 75 86 87 -1 0.0 -
3 Wantage Line 92 78 92 -14 0.0
4 Ideal View 101 90 100 -10 0.0 -
5 Holy Land 100 97 98 -1 0.0 -
6 Admirals Chance 87 77 84 -7 0.0 -
7 Raining Again 85 73 84 -11 0.0 -
8 Tradition 84 77 82 -5 1.0 -
9 Jacky Sparrow 79 80 79 +1 2.5 -
10 Citrusdal 93 81 90 -9 0.0 -
11 Brianna 103 103 98 +5 1.0 -
99 Dindingwe - 95 90 +5 1.0 -
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