Official NHA Assessment

Race 7: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 91 HANDICAP (Open)

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Line Horse
Captain Of Grit
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 9
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    Prince Of Taranto    4    60.0    1    0.00     6.0   91    91           91    +0
2    Captain Of Grit      3    56.0    2    0.60     8.5   83    83           83    +0
3    Fateful Day          3    57.5    3    0.65     8.5   86    86           86    +0
4    Aqua Bolt            5    58.0    4    2.25     0.0   90    102          102   +12
5    William Rufus        2    55.0    5    2.30     0.0   82    95           95    +13
6    Pragmatist           5    56.0    6    2.40     0.0   84    97           97    +13
7    Release Me           3    56.0    7    3.45     8.5   84    79           79    -5
8    Voldemort            6    55.5    8    3.60     0.0   82    95           95    +13
9    Ideal Act            3    59.5    9    3.90     8.5   90    86           86    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Taranto 91 92 91 +1 6.0 -
2 Captain Of Grit Line 83 84 83 +1 8.5
3 Fateful Day 86 93 86 +7 8.5 -
4 Aqua Bolt 90 84 102 -18 0.0 -
5 William Rufus 82 88 95 -7 0.0 -
6 Pragmatist 84 81 97 -16 0.0 -
7 Release Me 84 74 79 -5 8.5 -
8 Voldemort 82 81 95 -14 0.0 -
9 Ideal Act 90 86 86 ✓ Match 8.5 -
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