Official NHA Assessment

Race 7: FOLLOW GOLD CIRCLE ON FACEBOOK CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Professor Lupin
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 10
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    Future Flo           4    57.5    1    0.00     6.0   78    75           75    -3
2    Professor Lupin      4    58.5    2    0.70     6.0   77    77           77    +0
3    Andy Coogle          2    59.5    3    1.00     3.5   79    84           84    +5
4    Twenty One May       3    61.0    4    1.70     5.0   89    84           84    -5
5    Ibhele               3    60.0    5    1.75     5.0   87    82           82    -5
6    Stanley Park         2    55.0    6    2.05     3.5   70    75           75    +5
7    Lightning Jimmy      4    52.0    7    2.35     6.0   61    64           64    +3
8    Trafalgar Square     6    57.5    8    4.95     0.0   75    87           87    +12
9    Hurricane Cat        2    52.0    9    5.45     3.5   79    69           69    -10
99   Fine One             2    58.5    99   0.00     3.5   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Future Flo 78 95 75 +20 6.0 -
2 Professor Lupin Line 77 67 77 -10 6.0
3 Andy Coogle 79 83 84 -1 3.5 -
4 Twenty One May 89 91 84 +7 5.0 -
5 Ibhele 87 70 82 -12 5.0 -
6 Stanley Park 70 69 75 -6 3.5 -
7 Lightning Jimmy 61 48 64 -16 6.0 -
8 Trafalgar Square 75 69 87 -18 0.0 -
9 Hurricane Cat 79 76 69 +7 3.5 -
99 Fine One - 84 82 +2 3.5 -
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