Official NHA Assessment

Race 7: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 64 HANDICAP (Open)

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Line Horse
Porfirio
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 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    Lake Como            3    56.0    1    0.00     7.0   59    38           59    +0
2    Rafiki               2    58.5    2    0.40     0.0   62    62           62    +0
3    Porfirio             6    60.5    3    0.90     0.0   65    65           65    +0
4    Final Destiny        4    55.5    4    0.95     4.5   55    46           46    -9
5    Allaroundtheworld (  3    57.5    5    2.75     7.0   59    43           49    -10
6    Lord Edward          2    54.5    6    3.65     0.0   54    50           50    -4
7    Quiz Master          3    58.5    7    4.05     7.0   61    44           51    -10
8    Stevie Gee           5    56.5    8    4.55     0.0   58    53           53    -5
9    Red Magician         3    58.0    9    5.85     7.0   60    42           50    -10
10   Kashkaval            3    61.5    10   6.25     7.0   68    49           58    -10
11   Magwinya             2    55.5    11   8.25     0.0   56    51           51    -5
12   Political Party      2    58.0    12   8.30     0.0   69    56           59    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lake Como 59 61 59 +2 7.0 -
2 Rafiki 62 67 62 +5 0.0 -
3 Porfirio Line 65 88 65 +23 0.0
4 Final Destiny 55 50 46 +4 4.5 -
5 Allaroundtheworld (GB) 59 73 49 +24 7.0 -
6 Lord Edward 54 52 50 +2 0.0 -
7 Quiz Master 61 60 51 +9 7.0 -
8 Stevie Gee 58 65 53 +12 0.0 -
9 Red Magician 60 49 50 -1 7.0 -
10 Kashkaval 68 74 58 +16 7.0 -
11 Magwinya 56 50 51 -1 0.0 -
12 Political Party 69 66 59 +7 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