Official NHA Assessment

Race 6: RACING240 FOR RACING. FOR YOU MR 83 DIVIDED HANDICAP (Open)

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Line Horse
American Rebel
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 11
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    Diesel's Shadow      4    57.0    1    0.00     2.5   77    74           77    +0
2    On Target            3    58.5    2    0.90     5.0   90    76           80    -10
3    American Rebel       4    56.0    3    1.90     2.5   75    75           75    +0
4    High Queue           4    56.5    4    2.30     2.5   76    75           75    -1
5    Crepuscolo           4    52.0    5    2.80     2.5   66    66           66    +0
6    Luthuli              5    59.0    6    4.00     0.0   81    84           84    +3
7    Towers Of Gold       3    60.0    7    5.00     5.0   93    75           83    -10
8    Professor Snape      2    58.0    8    5.50     0.0   79    81           81    +2
9    Chariot Of Fire      3    52.0    9    5.55     5.0   77    59           67    -10
10   Eiger Sanction       3    60.0    10   6.85     5.0   83    75           75    -8
99   One More Star        3    57.5    99   0.00     5.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Diesel's Shadow 77 80 77 +3 2.5 -
2 On Target 90 95 80 +15 5.0 -
3 American Rebel Line 75 81 75 +6 2.5
4 High Queue 76 74 75 -1 2.5 -
5 Crepuscolo 66 58 66 -8 2.5 -
6 Luthuli 81 74 84 -10 0.0 -
7 Towers Of Gold 93 93 83 +10 5.0 -
8 Professor Snape 79 68 81 -13 0.0 -
9 Chariot Of Fire 77 77 67 +10 5.0 -
10 Eiger Sanction 83 79 75 +4 5.0 -
99 One More Star - 87 70 +17 5.0 -
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