Official NHA Assessment

Race 2: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 65 HANDICAP (Open)

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Line Horse
Gimme A Rainbow
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Leslies Pathtofame   7    57.0    1    0.00     0.0   62    77           62    +0
2    Gimme A Rainbow      4    60.5    2    1.20     9.0   66    66           66    +0
3    Calvino              4    52.0    3    1.25     9.0   49    49           49    +0
4    Gunsmoke             3    59.0    4    1.65     7.5   63    66           66    +3
5    Quest For The Best   4    54.0    5    2.15     9.0   53    53           53    +0
6    Mac Hardy            4    61.0    6    2.85     9.0   67    67           67    +0
7    Anotherdayinafrica   6    58.5    7    4.45     0.0   62    80           80    +18
8    Brave Voyager        3    55.5    8    5.20     7.5   56    59           59    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Leslies Pathtofame 62 63 62 +1 0.0 -
2 Gimme A Rainbow Line 66 74 66 +8 9.0
3 Calvino 49 51 49 +2 9.0 -
4 Gunsmoke 63 68 66 +2 7.5 -
5 Quest For The Best 53 76 53 +23 9.0 -
6 Mac Hardy 67 64 67 -3 9.0 -
7 Anotherdayinafrica 62 49 80 -31 0.0 -
8 Brave Voyager 56 51 59 -8 7.5 -
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