Official NHA Assessment

Race 4: WSB Black Friday coming soon MR 68 HANDICAP (Open)

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Line Horse
Porfirio
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Lucretius            6    60.5    1    0.00     0.0   69    65           69    +0
2    Porfirio             6    57.0    2    0.80     0.0   62    62           62    +0
3    Wave Warrior         3    54.5    3    0.85     8.0   62    41           52    -10
4    Animal Impact        4    58.0    4    4.05     4.5   65    52           55    -10
5    Miss Lialah          4    57.0    5    4.45     4.5   65    49           55    -10
6    Mr Hotstepper        2    61.0    6    5.85     0.0   86    66           76    -10
99   King Bavarian        5    54.0    99   0.00     0.0   -     52           52    +0
99   Burning Man          3    58.5    99   0.00     8.0   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lucretius 69 64 69 -5 0.0 -
2 Porfirio Line 62 88 62 +26 0.0
3 Wave Warrior 62 68 52 +16 8.0 -
4 Animal Impact 65 64 55 +9 4.5 -
5 Miss Lialah 65 65 55 +10 4.5 -
6 Mr Hotstepper 86 87 76 +11 0.0 -
99 King Bavarian - 67 52 +15 0.0 -
99 Burning Man - 74 45 +29 8.0 -
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