Official NHA Assessment

Race 8: LUCKY FISH DIAMOND RICHES CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Worldly
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
4 / 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    Cork Bay             3    57.5    1    0.00     2.5   77    80           80    +3
2    Blind Date           2    59.0    2    1.75     1.5   83    85           85    +2
3    Worldly              2    55.0    3    2.75     1.5   77    77           77    +0
4    Sooty                4    56.5    4    3.25     0.0   75    83           83    +8
5    Kelp Forest          5    59.0    5    3.55     0.0   80    88           88    +8
6    Clark Griswold       3    60.0    6    4.80     2.5   85    85           85    +0
7    Sky Rocket           3    56.0    7    6.30     2.5   77    77           77    +0
8    Kliptown             3    58.5    8    6.60     2.5   82    82           82    +0
9    Follow Your Heart    2    61.5    9    7.60     1.5   88    90           90    +2
10   Firingonallengines   4    53.5    10   10.10    0.0   69    77           77    +8
99   Lady Look Alike      4    57.5    99   0.00     0.0   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cork Bay 77 82 80 +2 2.5 -
2 Blind Date 83 84 85 -1 1.5 -
3 Worldly Line 77 77 77 ✓ Match 1.5
4 Sooty 75 75 83 -8 0.0 -
5 Kelp Forest 80 79 88 -9 0.0 -
6 Clark Griswold 85 82 85 -3 2.5 -
7 Sky Rocket 77 77 77 ✓ Match 2.5 -
8 Kliptown 82 79 82 -3 2.5 -
9 Follow Your Heart 88 86 90 -4 1.5 -
10 Firingonallengines 69 67 77 -10 0.0 -
99 Lady Look Alike - 77 85 -8 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